Windows 10: PC keeps restarting itself also Windows logon user interface host stops working
Discus and support PC keeps restarting itself also Windows logon user interface host stops working in Windows 10 BSOD Crashes and Debugging to solve the problem; windows logon user interface host keeps not working from time to time and also my pc keeps randomly restarting itself (last one at 11.20) I have ran…
Discussion in ‘Windows 10 BSOD Crashes and Debugging’ started by Timppaliisa19, Sep 8, 2019.
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PC keeps restarting itself also Windows logon user interface host stops working
windows logon user interface host keeps not working from time to time and also my pc keeps randomly restarting itself (last one at 11.20) I have ran the scans other similar posts have had in them but still this keeps happening
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Windows 10 wake from sleep crashes Logon User Interface Host or Windows Shell Experience Host
Since upgrading from 8.1 pro to 10 pro waking from sleep is usually (not always) causing a black screen necessitating a hard reset. Either Logon User Interface Host or Windows Shell Experience Host has crashed during wake up.
Any fixes for this available?
Its on a Dell XPS8700 16gb Nvidia 620 TT
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Windows 10 wake from sleep crashes Logon User Interface Host or Windows Shell Experience Host
Hi,
Thank you for your reply.
I suggest you to follow the steps below and check if it helps
Method 1: You may check the same issue with the new user account.
Try these steps to create a new user account and check if it fixes the issue. Refer to the steps below to create a new User Account:
- Go to Settings.
- Choose Accounts and then select Other User Accounts towards the left.
- Select Add an Account.
- Enter a user name and hit next.
- Click on Finish.
- Sign out from the current Account and Log into the new account.
- Check if issue persists.
Hope this information is helpful. Do let us know if you need any further assistance, we’ll be glad to assist you.
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PC keeps restarting itself also Windows logon user interface host stops working
«logon failure: the user has not been granted the requested logon type at this computer»
I have really broken my network. I renamed these two machines, which was the beginning of all this, I wanted a naming scheme that matched. «logon failure: the user has not been granted the requested logon type at this computer» any ideas on what I can do do resolve that? It’s an error on the windows 10 machine hosting the HomeGroup, trying to access the windows 7 laptop (which is on the HomeGroup). It works flawlessly in the opposite direction (laptop to homegroup hosting pc). It worked fine before I renamed the machines and then went digging around trying to «clean it up a bit» (I had folders listed as being shared twice and stuff like that). All the machines on the network/homegroup are logged into the homegroup, all display the homegroup grouping and network home/private grouping, and they all work all ways except the homegroup hosting windows 10 machine not accessing the windows 7 laptop. I feel like it may be something that’s windows 7 specific that I’m missing. The other windows 10 machine is able access the laptop fine. I’ve tried disabling the firewall in the laptop and it made no difference. I’ve run the windows homegroup diagnostics both ways, the windows 10 pc says everything’s correct the laptop just isn’t responding, the laptop’s diagnostic says the firewall is misconfigured (but yet turning it off doesn’t solve the problem). All shared folders are set to share with HomeUsers only. All have full permissions set. I’m baffled. These two machines are just not playing nicely anymore. Help?
PC keeps restarting itself also Windows logon user interface host stops working
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Anyone know how to fix Windows Logon User Interface Host error?: [ATTACH] submitted by /u/GTR24
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Windows Logon User Interface Host Problem: 描述
错误的应用程序路径: C:\Windows\System32\LogonUI.exe问题签名
问题事件名称: APPCRASH
Application Name: LogonUI.exe
Application Version: 10.0.15063.0
Application Timestamp: ccf07184
Fault Module Name: ntdll.dll
Fault Module Version: 10.0.15063.1324
Fault Module Timestamp:…
The logonUI.exe is a windows program that is executed after the boot and it creates the interface for the login. This is system software. It is a part of the Windows Operating System and is maintained by Microsoft Corporation. It is responsible for the login screen interface, thus can cause a severe issue if somehow it gets corrupted or gets interfered with by some malicious programs.
I will cover some basic details about logonUI.exe and methods to fix the error related to it for Windows 10, 8, and 7.
Quick Overivew
Properties
The full name of LogonUI is Windows Logon User Interface Host which is located under C:\Windows\System32 directory. It can also be placed under C:\Windows\WinSxS\ folder in Windows 10.
| File Name: | logonui.exe |
| File Size: | 13.5 KB |
| File Location: | C:\Windows\System32 |
| Publisher: | Microsoft Corporation |
| File version: | 10.0.18362.1 |
| File Description: | Windows Logon User Interface Host |
| Product Name: | Microsoft Windows Operating System |
Uses
The main function of this program is to create an interface that verifies the account username and password entered by a user and allows them to proceed further to the desktop screen only if the credentials are correct. It is a windows pre-installed program that comes with the OS and is an essential part of the system.
Is it safe or a virus?
logonUI.exe is a completely safe and trustworthy application. As it is a windows program it does not harm the computer, on the contrary, a user may get in trouble if the program fails to run correctly. Although, sometimes it can get corrupted due to various reasons and can get infected by some malicious programs.
If you suspect that logonUI.exe on your computer could be a virus,
Errors related to the file logonUI.exe
A user may get a complete black/flashing or strobing screen followed by the error message :
LogonUI.exe – Application Error
“The Exception Breakpoint/A breakpoint has been reached/(0x80000003) occurred in the application at location <Hexadecimal memory address>. Click on OK to terminate the program.”
LogonUI.exe – System Error
“LogonUI.exe system error. The program can’t start because <filename.dll> is missing from your computer. Try reinstalling the program to fix the problem.”
Causes of these errors:
These problems may occur due to the following reasons-
- Internal Error – The files may get corrupted due to an update. System Update or a Driver Update can cause this problem.
- Hard disk failure
- the executable file gets infected by a malware
- Missing or corrupted system DLL files
Effects of error:
A corrupted or infected logonUI.exe causes the following problems-
- Black/flashing or strobing screens during logon
- freezing the mouse completely
These issues force users to only one option i.e forcefully shut down the PC which makes the system unusable.
There are several ways to get rid of LogonUI.exe Application Error that may pop-up during startup. First of all, we will try to enter the desktop for the time being using method 1 below.
Method 1: Accessing the desktop using Ctrl + Alt + Delete
Several users have reported that this method fixed the logonUI.exe error which prevented them from entering the desktop. Although this is a temporary solution, you should use it to enter Windows to scan and repair your PC.
- Press Ctrl + Alt + Delete for 10 seconds
- You will be able to enter the desktop and use your PC
You should use this if you cannot enter your desktop. We recommend using the following steps to fix this error.
Method 2: Using startup repair
1. If you can enter the desktop using the above method, Hold down SHIFT and left-click on the restart to open the Boot options menu
If you cannot enter the desktop, keep restarting your PC 3 times and Windows will automatically enter the Boot options menu
2. Click on Troubleshoot
3. Choose Advanced Options
4. From the Advanced Options menu click on the Startup Repair
5. Let the Startup Repair complete, the system will restart and see if the problem is resolved.
Method 3: Using SFC and CHKDSK
1. From the Advanced Options (check up to step 3 in the previous method) Window, click on the Command Prompt to open up the Windows Command line
2. Type the following commands, execute these commands one at a time, and hit ENTER after each command
sfc /scannow /offbootdir=%systemdrive%\ /offwindir=%systemroot% chkdsk %systemdrive% /f /r /x
Alternatively, you can replace the %systemdrive% by C: (or the current/desired system drive letter)
and %systemroot% by C:\Windows
3. After hitting Enter the prompt will ask you to schedule the scan to the next boot. Press Y and hit ENTER
4. Type exit and hit ENTER
5. Restart the system, the SFC & DSC process will be executed and the problem shall be fixed
Method 4: Disable Graphics card driver and update it
Disabling the graphics card driver has been proved to be useful for some users to fix LogonUI.exe application error:
This method has two parts:
- Disabling graphics card driver in safe mode and
- Updating the driver software in normal boot.
To disable Graphics card driver-
1. Access the Boot options menu as we did in method 2
2. Choose to Troubleshoot and then advanced options
3. Select the option Startup settings
4. Click on Restart and then from the list of options, select Enable Safe Mode (by pressing F4 function key)
5. Your PC will boot up in Safe mode; Now right-click on This PC or My Computer and select Manage
6. Choose the device manager from the side panel and double click on it
7. From the list of devices, select Display Adapter and disable your primary graphics card by right-clicking on it
8. Restart your PC and your Windows should boot up in normal mode.
To update the driver software-
1. After your Windows boots up, again go to Device Manager as you did in the safe mode
2. Double-click on your primary graphics card
3. In the Drivers tab, click on Update Driver and go through the instructions to update the driver software
4. Restart your PC to check if the problem is resolved.
Method 5: Using System Restore feature
1. From the Advanced Options Window in the Boot options menu, click on the System Restore option
2. In the System Restore application Window, click next
3. Click on Finish
4. After the Restore is complete, restart your system and this will fix the system error.
Method 6: Repair the boot sector and disk
1. From the Advanced Options window in the boot options menu, click on the Command Prompt option to open up the Windows Command line
2. Type the following set of commands and execute them :
bootrec.exe /FixMbr bootrec.exe /FixBoot
Execute these commands one at a time and press Enter after each command
3. Now to run DISM (Deployment Image Servicing & Management), enter the following command
DISM.exe /Online /Cleanup-Image /RestoreHealth
If the above commands didn’t work, try the following commands and press ENTER after each
bcdedit /export C:\BCD_Backup c: cd boot attrib bcd -s -h -r ren c:\boot\bcd bcd.old bootrec /RebuildBcd
This will take a few minutes to complete.
4. Exit the command prompt by entering exit command and restart your PC to see if the problem persists.
Method 7: Disabling the other log in options in safe mode
Some devices come with different log in features to make your system more secure, like the fingerprint scanner or facial recognition, PIN. These features can cause issues like logonUI.exe error. In this method, we will disable these features.
First, we need to go into safe mode-
1. Access the Boot options menu
2. Choose Troubleshoot and then advanced options
3. Select the option Startup settings
4. Click on Restart and then from the list of options, select Enable Safe Mode (by pressing F4 function key)
Now we will disable the sign-in features-
1. Press Windows + I to enter Windows Settings
2. Click on Accounts
3. From the side panel, click on Sign-in options
4. You will see various sign-in options, remove every one of them by clicking on it and pressing the remove button (If you are unable to remove one option, it might be your default login option, you should leave it)
5. Restart your PC and Windows will boot in normal mode.
Method 8: Reset your operating system
If none of the methods worked to fix Logonui.exe application error then you should consider resetting your PC. This will freshly install Windows 10 on your device and you can also keep your files and settings intact.
1. Under the Boot options, click on Troubleshoot
2. Click on Reset this PC
3. In the next window, click on keep my files
4. Let the reset process work, this might take a while.
Conclusion
All the above-mentioned steps should be enough to fix the error regarding LogonUI.exe. In case you are still having issues or you have feedback to give, kindly leave a comment down below or contact us.
Other similar files:
igfxtray.exe, Igfxhk.exe, IgfxEM.exe, Hkcmd.exe, nvsvc.exe
Attention Before you read this post, I highly recommend you check out my resources page for access to the tools and services I use to not only maintain my system but also fix all my computer errors, by clicking here!
If you’ve been a Windows user for any real length of time, then you’d be familiar with the various internal Windows errors. These errors range from .exe errors to .dll errors, to system errors, etc. Logonui.exe is a Windows service that is also prone to errors, errors that can be somewhat difficult to fix, if you don’t know how. That said, for those of you who’ve arrived on this page, you’re now in good company. Expect to find, a variety of viable fixes for issues related to the logonui.exe file.
Logonui.exe Overview
Logonui.exe is an important Windows executable file, that’s responsible for the user login component of the operating system. Essentially, it’s a system process, which forms the Windows Logon UI (User Interface) Host. The Logon UI is an integral component of Windows, as end users would be unable to log into Windows without it.
Is Logonui.exe Dangerous?
Logonui.exe is a Windows system file, and thus, considered totally safe. There’s little reason to believe this file is causing any harm to your system. That said, the file should be found in the following location:
C:\Windows\System32
If you find it anywhere else, then it’s likely a virus file.
Can You Remove Logonui.exe?
Logonui.exe is an important system process, and thus, should always be active. This process is vital to the smooth operation of Windows. It’s for this reason, it should never be stopped or removed by the end user.
Is Logonui.exe Resource Hungry?
Logonui.exe is considered to be relatively resource hungry. As a result, it may be prudent to monitor its resource usage. You want to ensure it’s not hampering the operating system. If the logonui.exe process is adversely affecting system performance, then you may want to consider disabling unneeded services and modules, using the Microsoft System Configuration Tool.
What Causes Logonui.exe Errors?
On any given day, it’s expected that your system will work without any hiccups. It will boot up fine, and allow you to install any program that you desire. However, there are times when issues can arise. For example, an error message may appear, right after the system finishes booting up. Such an error message may resemble the following:
LogonUI.exe – Application Error
The exception Breakpoint. A breakpoint has been reached. (0x80000003) occurred in the application location 0x00007FFC7F84C4D7.
As I’ve previously explained, the logonui.exe file, is responsible for the login component of Windows, as a result, it determines whether or not an end user can access Windows; as they are requested to provide a working username and password. It’s an integral part of Windows, but not one without its problems.
The general cause of this error varies. With the most common being amongst the following:
- Hard drive failure.
- Damaged or faulty memory (RAM) modules.
- Over utilised power supply unit.
- Corruption of important system files.
Whatever the cause, it’s up to you, to take the necessary steps to repairing the problem.
How to Fix It
In this tutorial, you can expect a wide range of possible fixes to be covered.
That said, the very first thing you’ll want to do. When face to face with the logonui.exe error, is a simple system reboot. If you’re lucky, the error will disappear, and the system will boot in, as if nothing happened.
If you’re still unable to boot into Windows, then it’s recommended that you attempt to access Safe Mode. You can find step by step instructions on how to do that, from my post on fixing 0x800700b7.
Another quick fix solution that you can adopt, is related to the KB3097877 Windows update. It’s a simple matter of uninstalling this update, in order to rectify the error message. To do that, you will need to access Command Prompt. You can find instructions on how to access Command Prompt from my post on fixing Bootmgr Is Missing errors.
Note: If you’re able to boot into Safe Mode, then you should be able to access Command Prompt, by pressing + R, typing cmd and pressing CTRL + Shift + Enter.
From Command Prompt, type the following and press Enter.
wusa /uninstall /kb:3097877 /quiet
If you’re able to boot into Safe Mode, then the easiest and most efficient way of fixing the logonui.exe error is by running Advanced System Repair Pro. Advanced System Repair Pro is a Windows repair tool, capable of scanning, detecting and repairing the integrity of your operating system, using its repository of files to replace missing and/or corrupt system files.
This solution works in most cases where the cause is file corruption. Advanced System Repair Pro will also improve the overall performance of your system.
You can learn more about this powerful tool, and how it can help you, from the following link:
CLICK HERE TO CHECK OUT ADVANCED SYSTEM REPAIR PRO
Use DISM Repair
Logonui.exe errors occur, when the LogonUI program has been corrupted, in some way. Fortunately, there are several methods you can deploy, to rectify this issue.
The first thing you’ll need to do is access Command Prompt, in Safe Mode. The section on How to fix it, covers how to do this.
Depending on whether or not you’re able to access Command Prompt through Safe Mode or a Windows Media Creation CD, once there, you will need to type the following, and press Enter.
Dism /Online /Cleanup-Image /RestoreHealth
If done correctly, Windows will attempt to restore the integrity of your operating system. Once complete, restart your computer to verify whether or not the issue has been resolved.
Uninstall FastAccess
If you have facial recognition software installed on your system, such as FastAccess, then there’s a chance that the logonui.exe error, is being caused by a conflict between the program and your operating system.
To rectify this problem, you will need to uninstall the program. The only way to do that is by entering Safe Mode. Accessing Safe Mode will vary, depending on the circumstances your system is in. The section titled How to fix it, covers exactly how to get into Safe Mode.
From Safe Mode, simply do the following:
1. Press + R, type Appwiz.cpl and click on OK.
2. When Add or Remove Program loads up, simply click on FastAccess, and then click on Uninstall.
3. Follow the onscreen instructions to successfully remove the program. Then restart your system, to verify whether or not the issue has been resolved.
Run Chkdsk
Chkdsk or Check Disk, is a built-in Windows tool, capable of scanning, repairing and recovering data on your hard disc drive. If the logonui.exe is caused by file corruption, then this tool may be able to fix it.
To run this tool, you will need to access Command Prompt, once again. Check out how to fix it, for further instructions.
1. When Command Prompt successfully loads up, type the following and press Enter.
Chkdsk /r
Disable Graphics Card
From people’s experiences with logonui.exe errors, it’s been noted that issues with ones graphics card adapter has been known to cause these errors. In the event that your graphics card is to blame, you can rectify this problem, by doing the following:
1. First, boot into Safe Mode. The section How to fix it, will show you exactly how to do that.
2. From Safe Mode, press + R, type devmgmt.msc, then click on OK.
3. When Device Manager loads up, click on the > icon next to Display Adapters, then right click on your Graphics Card and select Disable device.
4. Next, restart your computer, and it should boot up without any problems.
5. When in Windows, Enable the Graphics Card, by following steps 2 – 3.
Lastly, you may want to consider updating your device drivers, so the logonui.exe error doesn’t re-emerge. To do that, simply navigate to the manufacturer’s official website and download the latest driver(s) you find there.
Alternatively, you can use the automated driver updater tool, DriverFinder. This tool will automate the entire process, behind a couple mouse clicks. With that said, you can learn more about this tool, from the link below:
CLICK HERE TO CHECK OUT DRIVERFINDER
Are you looking for a way to repair all the errors on your computer?
If the answer is Yes, then I highly recommend you check out Advanced System Repair Pro.
Which is the leading registry cleaner program online that is able to cure your system from a number of different ailments such as Windows Installer Errors, Runtime Errors, Malicious Software, Spyware, System Freezing, Active Malware, Blue Screen of Death Errors, Rundll Errors, Slow Erratic Computer Performance, ActiveX Errors and much more. Click here to check it out NOW!
Many users reported LogonUI.exe System Error on their PCs, and the problem is usually caused by issues with your graphics card. To know this for sure, you need to disable the graphics card in Safe Mode. This may also cause Exception_Illegal_Instruction.
How do I fix the LogonUI.exe application error?
1. Disable your graphics card in Safe Mode
- Press the Windows key and click the Power icon.
- Now, press and hold the Shift key and choose the Restart option from the menu.
- When your PC restarts, select Troubleshoot > Advanced options.
- Choose the Startup Settings option.
- Next, click the Restart button.
- When your PC restarts, press the corresponding key to Enable Safe Mode or Safe Mode with Networking.
- Now, press the Windows key + X and choose Device Manager once your PC boots up.
- Double-click the Display adapters option to expand it, and right-click your graphics card.
- Select the Disable device option.
- Finally, click the Yes button to confirm the action.
The LogonUI.exe system Error can appear due to your graphics card. Your drivers can be the problem and cause this error message to appear.
If you cannot boot your PC normally, you should enable Safe Mode, as shown above.
2. Disable the fingerprint scanner
Several users have reported that the fingerprint scanner can cause LogonUI.exe System Error to appear. You need to enter Safe Mode and disable your fingerprint reader to fix this problem.
After doing that, the problem should disappear, and you can access Windows without any issues.
We have to mention that you can also fix this problem simply by updating your fingerprint software and driver. To do that, visit your fingerprint manufacturer’s website and download the latest fingerprint software or driver.
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3. Disable Micro Focus Password Self-Service
Users reported that LogonUI.exe System Error could appear due to the Micro Focus Password Self Service login extension. If you have this extension installed, remove it and check if that solves the problem.
It’s rather likely that Micro Focus has a new version of their software available, so if you want to continue using it, update it and check if that solves the problem.
4. Disable PIN login
- Press the Windows key + I to open the Settings app and select the Accounts option.
- Now, click the Sign-in options in the menu on the left, and scroll down to the PIN section.
- Click on the Remove button.
- Windows will ask you to confirm that you want to remove your PIN. Click on Remove.
- Now you have to enter your password and click on OK to remove your PIN.
PIN login is a simple way to protect your PC from unauthorized access, but sometimes problems can occur. Users reported that LogonUI.exe System Error is related to PIN login, and if you want to fix it, you need to disable it.
5. Perform SFC and DISM scan
- Press the Windows key + S, type cmd, and choose Run as administrator under Command Prompt.
- Type the command below and hit Enter:
sfc /scannow
- Now, wait for the process to complete. If the SFC scan fails, type the command below and press Enter to run it:
Dism /Online /Cleanup-Image /Restorehealth
LogonUI.exe System Error can sometimes appear due to corrupted system files. However, you can easily fix this problem simply by performing an SFC scan.
If the SFC scan can’t run or if it can’t fix the problem, you need to use the DISM scan instead. After the DISM run successfully, you can now repeat the SFC scan.
6. Remove the Sensible Vision FastAccess application
- Press the Windows key + I and select the Apps option.
- Click the Sensible Vision FastAccess app and select the Uninstall button.
- Finally, follow the onscreen instructions to complete the process.
According to users, the issue was caused by the Sensible Vision FastAccess application. You need to find and remove this application from your PC to fix the problem.
If you cannot boot into your PC normally, you should enable Safe Mode, as shown in Solution 1.
7. Use Ctrl + Alt + Del shortcut
If you can’t log in to Windows due to LogonUI.exe System Error, you might be able to solve it simply by using a single keyboard shortcut.
A few users reported that they fixed the problem simply by pressing Ctrl + Alt + Del shortcut for 10 seconds. We have to mention that this might not be a permanent solution, so you’ll have to repeat it every time this error appears.
8. Use integrated graphics
According to users, LogonUI.exe System Error can appear due to your dedicated graphics card. One way to fix this problem is to disconnect your laptop from the power source. By doing that, you’ll force it to use integrated graphics.
If you want a more reliable solution, change your settings and set your integrated graphics as the default display adapter. Keep in mind that by using integrated graphics, you might experience lower performance in video games.
9. Perform a clean boot
- Press the Windows key + R, type msconfig, and click OK.
- Click the Services tab at the top, check the Hide all Microsoft services box, and click Disable all.
- Navigate to the Startup tab and click on Open Task Manager.
- Now, select each of the apps there and click the Disable button.
- Finally, go back to the System Configuration window, click the Apply button, followed by OK, and restart your PC.
- A dialog will appear asking you to restart your PC. Choose the option to restart your PC now.
As we previously mentioned, LogonUI.exe System Error can be caused by third-party applications. To fix the issue, you need to disable all startup applications until you find the problematic one.
Once your PC restarts, start Windows normally and check if the problem still appears. If not, it means that one of the disabled applications or services is causing this problem.
To find out which application is the problem, you need to enable the apps in batches till you fix the faulty one.
10. Reinstall your graphics card driver
- If your Windows can’t start normally, start it in Safe Mode, as shown in Solution 1.
- Now, right-click the Start icon and select Device Manager.
- Expand the Display adapters options and right-click your graphics card.
- Next, choose Uninstall device.
- Check Delete the driver software for this device and click on Uninstall button.
- Finally, restart your PC.
Sometimes, the LogonUI.exe System Error can be related to your graphics card driver. This is especially true for AMD beta drivers. To fix this, you need to uninstall and reinstall the driver. You can also find the latest driver versions with a dedicated app like PC HelpSoft Driver Updater, saving both time and effort.
If you want to remove your graphics card driver completely, you can do that with Display Driver Uninstaller. This is a freeware tool that will remove your driver and all files and registry entries associated with it.
After you remove the driver, you have to install it again. To do that, visit your graphics card manufacturer’s website and download the latest driver for your graphics card.
11. Perform a System Restore
- Press the Windows key + S, type system restore, and choose the Create a restore point option.
- Click the System Restore button.
- Now, click the Next button.
- Now you should see the list of all available restore points. If available, check the Show more restore points option.
- Select the desired restore point and click on Next to proceed.
- Finally, click the Finish button and follow the onscreen instructions to complete the restoration process.
You might be able to fix LogonUI.exe System Error simply by performing a System Restore. This useful feature can restore your system and remove any recent problems.
If you can’t start Windows normally due to this error, you might have to perform System Restore from Safe Mode. Alternatively, you can access Advanced Startup Options and perform System Restore. To do that, follow these steps:
- Press the Power button to shut down your PC forcibly and power it on again. Force your PC to shut down again when the manufacturer logo shows. Repeat this thrice to start the Advanced recovery menu.
- Now, choose Troubleshoot > Advanced options.
- Select System Restore.
- Now, select your username and enter your password.
- Next, choose a restore point and click the Next button.
- Finally, follow the onscreen instructions to complete the process.
After restoring your system, the problem should be resolved entirely.
12. Disable Anti-Aliasing for your graphics card
- Open Nvidia Control Panel.
- Choose Manage 3D settings from the menu on the left.
- In the right pane, go to Global Settings, locate Antialiasing – Mode, and set it to Off.
- Some users also suggest turning off Multi-Frame Sampled AA (MFAA), so you might also want to do that.
- Now click on Apply to save changes.
Many users use Anti-Aliasing while playing their favorite video games, but sometimes this feature can cause certain problems.
Several users reported that this feature caused LogonUI.exe System Error to appear. To fix the problem, you need to disable Anti-Aliasing, the FXAA feature.
After doing that, the problem should be resolved completely. We showed you how to disable Anti-Aliasing for Nvidia graphics cards, but if you have AMD graphics, you should be able to disable it from Catalyst Control Center.
13. Uninstall CSR Wireless Stack software
Another third-party application that can cause the LogonUI.exe System Error is CSR Wireless Stack. If you have this application on your PC, remove it or update it to the latest version and check if that solves your issue.
14. Disable or uninstall your security software
According to users, your antivirus software can also cause LogonUI.exe System Error to appear. You might have to temporarily disable your antivirus to fix the issue and check if that solves the problem.
If the issue persists, you might try temporarily removing your antivirus software.
It’s worth mentioning that antivirus tools tend to leave certain files and registry entries behind, even after you uninstall them. You’ll have to use a dedicated removal tool to remove an antivirus tool from your PC completely.
15. Replace the problematic files
Sometimes LogonUI.exe System Error will tell you which file is causing this problem. Copy that file from a working Windows PC to your C:\Windows\System32 directory to fix the issue.
Sometimes you might not be able to access your Windows, and if that’s the case, you’ll need to boot to Command Prompt and copy the problematic file to the System32 directory using the command line.
This is an advanced solution, and if you’re not careful, you can cause even more problems with your operating system, so be extra cautious.
16. Reset Windows 10
- Restart your computer a few times during the boot sequence.
- Choose Troubleshoot.
- Now, select Reset this PC.
- Finally, choose the Remove files option and follow the onscreen instructions to complete the process.
If other solutions can’t fix this problem, you might consider Windows 10 reset. This solution will remove all files from your system drive, so back them up beforehand.
In addition, you might also need a Windows 10 installation media, so be sure to create it using the Media Creation Tool.
LogonUI.exe System Error can cause many problems since it can prevent you from accessing Windows. However, you should be able to fix this problem simply by using one of our solutions.
There are other login errors you can encounter, and we wrote about resolving the Logon Balancing Error 88 in SAP GUI with our expert solutions.
If you are facing other issues, like the exception breakpoint has been reached, check our detailed guide to fix it quickly.
Feel free to let us know the solution that helped you fix this issue in the comments below.
This post from MiniTool Partition Wizard introduces some solutions to LogonUI.exe application error which you might encounter at the login screen on Windows 10. Please be patient during the troubleshooting process, as the reasons for this problem could be various and you might need to try these solutions one by one to fix it.
About LogonUI.exe
Before trying the solutions to LogonUI.exe application error, let’s learn about LogonUI.exe at first. LogonUI.exe is a core component of Windows, and it is responsible for building up the logon user interface where you log in to your system. It is a critical process for the Windows operating system, as you will be unable to log in without it.
The genuine LogonUI.exe file should be located in the path C:WindowsSystem32. If you find the LogonUI.exe file in another folder, it should be a virus that is pretending to be a system file and you should remove the virus immediately.
According to the reports, some users have received LogonUI.exe application error at the login screen. The error message prevents them from entering the system and they are even unable to click anything on the login screen.
Don’t worry if you are bothered by the same problem, here are some solutions and you can try them to fix it.
Solution 1: Try Ctrl + Alt + Del
The keyboard shortcut Ctrl + Alt + Del enables you to terminate the unresponsive application. When you receive LogonUI.exe application error, you can try the keyboard shortcut. This might not be a permanent solution, as the mentioned error could appear again the next time you launch your PC.
If Ctrl + Alt + Del doesn’t work in your case, you need to move on to the next method.
Note: As you can’t enter the system due to LogonUI.exe error, you should start your PC in Safe Mode before trying the solutions below. If the login screen is responsive, you can use Shift + Restart, go to Troubleshoot > Advanced options > Startup Settings > Restart, and press F5 to choose Enable Safe Mode with Networking. Otherwise, you need to forcefully shut down the PC 3 times to do it.
Solution 2: Disable Security Programs for Login
Some security programs for facial recognition might be incompatible with Windows 10. If you have installed any software such as FastAccess by Sensible Vision, you might encounter LogonUI.exe error. To solve the problem, you need to uninstall it in Safe Mode. Here are the detailed steps.
Step 1: After entering Safe Mode, press Win + R to invoke Run window. Then type appwiz.cpl in the box and press Enter to view your installed programs and features.
Step 2: Right-click FastAccess or other security software for login and select Uninstall.
Step 3: Follow the onscreen instructions to finish the uninstallation.
Then you can restart your PC to get out of Safe Mode and check if LogonUI.exe error message disappears.
Some users report that LogonUI.exe error could also be related to the PIN login. If you have enabled the service, you can try disabling the PIN in Safe Mode to fix the mentioned error.
Solution 3: Disable Antivirus Software
Third-party antivirus software might also be a reason why you encounter LogonUI.exe error. If you haven’t installed any security programs for login or the second solution doesn’t work in your case, you should disable or uninstall the third-party antivirus software you are using. Then check if the problem has been fixed.
Solution 4: Disable Graphics Card Adapter
Problematic graphics card adapter might also lead to LogonUI.exe error on Windows 10. To fix the problem, you can try disabling the graphics card adapter. Of course, you need to enter Safe Mode at first. Then follow the steps below the disable it.
Step 1: Right-click Start button and select Device Manager.
Step 2: Double-click Display adapter to expand it and view your graphics card.
Step 3: Right-click your graphics card and choose Disable device.
Step 4: In the pop-up window, click Yes to make sure that you want to disable the device.
After that, you can restart your PC. If you can log in and enter the system without LogonUI.exe error, you can open Device Manager and enable the graphics card adapter, and then use the PC as you want.
Tip: You can also try reinstalling the graphics card driver to solve the problem. You just need to uninstall the driver in Device Manager, and then download the latest driver from the website of your graphics card manufacturer. You can also try disabling the Antialiasing-Mode if you are using an Nvidia graphics card.
Solution 5: Run SFC Scan
LogonUI.exe application error could also happen if there are any corrupted or missing system files. In this case, you should Run System File Checker to remove the error.
Step 1: In Safe Mode, Open Run window and type cmd. Then press Ctrl + Shift + Enter to run Command Prompt as administrator.
Step 2: In Command Prompt, input the command sfc /scannow and press Enter.
Then System File Checker will scan your PC and fix the problematic system files. You just need to wait patiently until the process is completed. Then restart the system and try to log in.
If this doesn’t work either, you can try DISM scan which is used to scan and repair Windows 10 image. Please run Command Prompt as administrator in Safe Mode and execute the following command line: Dism /Online /Cleanup-Image /Restorehealth.
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Solution 6: Perform a Clean Boot
As mentioned, some third-party security or antivirus software could cause the problem we are talking about. You should know that some other types of applications or services might also be responsible for the issue. To figure out the problematic programs or services, you can perform a clean boot to disable them all and enable them one by one.
Here is the tutorial.
Step 1: Open Run window. Then type msconfig and press Enter to go to System Configuration.
Step 2: Select Services tab, uncheck Hide all Microsoft services, and click Disable all.
Step 3: Switch to Startup tab and click Open Task Manager. In the pop-up window, select each item and click Disable to prevent them from running on startup.
Step 4: Close Task Manager and go back to System Configuration. Then click Apply and OK.
After disabling the applications and services, you can restart the PC. If the LogonUI.exe application error doesn’t pop up, it indicates that one of the disabled services is the culprit of the problem, and you can enable them one by one to find it out.
Then you should keep the problematic service disabled or remove it completely.
Solution 7: Run Startup/Automatic Repair
If you don’t find any problematic applications or you receive the same error in Safe Mode, you can try Automatic Repair. You should enter WinRE by shutting down and restarting your PC three times. Then go to Advanced options > Troubleshoot > Advanced options > Startup/Automatic Repair. When the Startup/Automatic Repair finishes, you can restart the PC and log in.
Tip: You can also use Windows Installation Media to enter WinRE.
Solution 8: Perform System Restore
If you have created a restore point, you can perform System Restore to restore your PC to earlier date, which might be helpful to solve LogonUI.exe error. Please go to WinRE and navigate to Advanced options > System Restore. Then select the administrator account, enter your password, and follow the instructions to complete it and solve the problem.
Solution 9: Reinstall Windows 10
If all the solutions fail to solve LogoUI.exe application error, you might need to reinstall Windows 10. You are recommended to restore the lost data from your system partition and save it to another drive before reinstalling.
For the professional data recovery tool, you can use MiniTool Partition Wizard. Its paid edition provides a bootable media builder feature that allows you to create a burned USB/CD/DVD to boot the problematic PC. Now, let’s see how to recover the data in the system drive.
Step 1: Download and install MiniTool Partition Wizard on another normal PC.
MiniTool Partition Wizard DemoClick to Download100%Clean & Safe
Step 2: Create a bootable USB drive with MiniTool Partition Wizard.
Step 3: Boot problematic PC from the burned USB drive and you will enter the main interface of MiniTool Partition Wizard.
Step 4: Right-click the system partition and select Data Recovery. Then MiniTool Partition Wizard will start scanning your system partition.
Tip: Your system partition might not be assigned with the letter C in the bootable edition of MiniTool Partition Wizard, and please make sure you have selected the right partition.
Step 5: After scanning, you can check the files you need and click Save.
Step 6: Select another drive to save your important files.
Now, you can use a Windows 10 Media Creation tool to reinstall Windows 10. You just need to:
Tip: Alternatively, you can enter WinRE and go to Advanced options > Troubleshoot > Reset this PC to factory reset your PC and solve the problem.
Step 1: Connect a USB drive to another working PC, download the tool, and run it on this PC.
Step 2: Select Create installation media (USB flash drive, DVD, or ISO file) for another PC. Then click Next and follow the onscreen instructions to finish the operation.
Step 3: Boot the PC which you want to reinstall Windows 10 from the USB drive. Then configure your preferences and click Install now.
Step 4: Follow the instruction to reinstall Windows 10. During the processes, several reinstall options will be available, and you can choose to keep your apps and settings or remove all according to your needs.
After reinstalling Windows 10, you should be able to use this PC again.
You can try the solutions in this post to fix the problem if you encounter LogonUI.exe application error on Windows 10.Click to Tweet
Bottom Line
Don’t panic if you cannot log in to Windows 10 due to the LogonUI.exe application error, here are some effective solutions from users and you can also have a try.
If you have better ideas, you can feel free to share them with us by leaving them in the following comment section. If you encounter any issues while using MiniTool Partition Wizard, you can contact our support team via [email protected].
LogonUI.exe Application Error FAQ
How do I go into Safe Mode?
There are many ways you can boot Windows 10 into Safe Mode, such as with the help of Windows Settings, System Configuration, WinRE, etc. For detailed information, you can refer to our previous post: How to Start Windows 10 in Safe Mode (While Booting).
How can I repair my Windows 10?
To repair your Windows 10 while encountering problems, you can try Startup Repair, SFC scan, resetting PC, System Restore, and reinstalling Windows 10. For more solutions, you can check this post: How to Repair Windows 10 for Free Without Losing Data.
How do I restore my computer to factory settings Windows 10?
- Go to Settings > Update & Security.
- Select Recovery and click Get started button under Reset this PC
- Choose Keep my files or Remove everything according to your needs.
- Click Next to continue and follow the onscreen instructions to finish the process.
You would lose data during the process. Therefore, you’d better back up your important files before the factory resettings.