Fix LogonUI.exe Error on Windows 10 Easily

If you’re facing the LogonUI.exe error on your Windows 10 computer, it can be a frustrating and hindering experience. This error prevents you from logging into your system and can disrupt your workflow. However, there’s no need to worry because there are several solutions available to fix this issue and get your computer back up and running smoothly.

Key Takeaways:

• The LogonUI.exe error can be resolved using various solutions.
• Try using Ctrl + Alt + Del as a quick fix for the error.
• Disable security programs and antivirus software to troubleshoot the error.
• Consider updating graphics card drivers or running an SFC scan to fix the error.
• Perform a clean boot, startup repair, or system restore if other solutions fail.

Understanding LogonUI.exe and its Importance in Windows 10

LogonUI.exe is a core component of the Windows operating system. It is responsible for creating the user interface where you log in to your system. Without LogonUI.exe, you would be unable to access your computer. The genuine LogonUI.exe file is located in the C:\Windows\System32 folder. If you find the file in any other location, it may be a virus or malware pretending to be a system file and should be removed immediately.

Solution 1: Try Ctrl + Alt + Del

If you’re experiencing a logonui.exe error on startup or encountering an error message related to logonui.exe on Windows 10, one of the initial troubleshooting steps you can take is to try using the keyboard shortcut Ctrl + Alt + Del. This simple shortcut allows you to access the Windows Security options, where you can terminate any unresponsive applications that may be causing the logonui.exe error.

By using Ctrl + Alt + Del, you can forcefully close any programs or processes that may be conflicting with the logonui.exe process and causing the error. This action may temporarily resolve the issue and allow you to log in to your Windows 10 system.

Note: It’s important to keep in mind that using Ctrl + Alt + Del may not provide a permanent fix for the logonui.exe error. In some cases, the error may reoccur the next time you start your PC. Therefore, it’s recommended to explore additional solutions if the issue persists.

Solution 2: Disable Security Programs for Login

Some security programs, such as facial recognition software, can be incompatible with Windows 10 and cause LogonUI.exe errors. These errors can disrupt the login process and prevent you from accessing your computer. To resolve this issue, try disabling or uninstalling any security programs that you have installed, especially if they involve advanced login features like facial recognition.

One example of security software that can cause conflicts is FastAccess by Sensible Vision. If you have this or similar software installed, try uninstalling it in Safe Mode. Disabling the PIN login feature in Safe Mode may also help resolve the LogonUI.exe error. Safe Mode allows you to start your computer with a minimal set of drivers and services, which can help troubleshoot and resolve issues without interference from other programs.

Disabling security programs for login may eliminate any conflicts that are causing the LogonUI.exe error and allow you to log in to your Windows 10 system without any issues. However, it is important to note that disabling security programs may leave your computer vulnerable to threats, so ensure that you have alternative security measures in place before proceeding.

Disabling security software in Safe Mode

1. Restart your computer and press the F8 key repeatedly before the Windows logo appears.
2. Select “Safe Mode” from the advanced startup options menu.
3. Once in Safe Mode, open the control panel and navigate to the “Programs” or “Programs and Features” section.
4. Locate the security software that you want to disable or uninstall.
5. Right-click on the software and select either “Disable” or “Uninstall.”
6. Follow the on-screen instructions to complete the process.
7. Restart your computer normally and check if the LogonUI.exe error has been resolved.

Disabling the PIN login feature in Safe Mode

1. Restart your computer and press the F8 key repeatedly before the Windows logo appears.
2. Select “Safe Mode” from the advanced startup options menu.
3. Press the Windows key + R to open the Run dialog box.
4. Type “netplwiz” and press Enter to open the User Accounts dialog box.
5. Select your user account from the list and click on “Reset Password.”
6. Follow the on-screen instructions to remove the PIN login feature.
7. Restart your computer normally and check if the LogonUI.exe error has been resolved.

Disabling security programs for login and the PIN login feature in Safe Mode can help resolve LogonUI.exe errors caused by incompatible software. However, if the error persists, there are additional solutions that you can try to fix the issue and regain access to your Windows 10 system. These solutions include disabling antivirus software, updating graphics card drivers, and performing system repairs, among others. Check the previous sections for more information on these solutions.

Note: It is recommended to re-enable your security programs and PIN login feature once the LogonUI.exe error has been resolved to ensure the ongoing security of your computer.

Solution 3: Disable Antivirus Software

If you haven’t been able to resolve the LogonUI.exe error using the previous solutions or if you haven’t installed any security programs specifically for login, it’s worth considering that third-party antivirus software can sometimes interfere with the LogonUI.exe process and cause errors. In such cases, disabling or uninstalling the antivirus software you have installed can help troubleshoot the issue.

By temporarily disabling the antivirus software, you can check if it is the root cause of the LogonUI.exe error. Here’s how you can do it:

1. Locate the antivirus software icon in your system tray, typically located in the bottom-right corner of the screen.
2. Right-click on the icon and look for an option to disable or exit the antivirus software temporarily.
3. Follow the on-screen prompts to disable the antivirus software.

Once the antivirus software is disabled, restart your computer and check if the LogonUI.exe error has been resolved. If the error no longer occurs, it is likely that the antivirus software was causing the issue. You can consider reinstalling an alternative antivirus solution that is compatible with LogonUI.exe to ensure the security of your system.

Note:

Disabling antivirus software temporarily should only be done for troubleshooting purposes. It is important to keep your system protected from potential threats by reinstalling or enabling a compatible antivirus solution once the LogonUI.exe error has been resolved.

Solution 4: Disable Graphics Card Adapter

Another potential cause of LogonUI.exe errors is a problematic graphics card adapter. When the graphics card adapter is not functioning correctly, it can lead to errors during the login process. To troubleshoot this issue, you can try disabling the graphics card adapter in Safe Mode.

Disabling the graphics card adapter allows your computer to use the default graphics driver, which may help resolve the LogonUI.exe error. To disable the graphics card adapter, follow these steps:

1. Restart your computer and continuously press the F8 key until you see the Advanced Boot Options menu.
2. Use the arrow keys to select Safe Mode with Networking and press Enter.
3. Once your computer is in Safe Mode, press the Windows key + X and select Device Manager from the menu.
4. In the Device Manager window, expand the Display adapters category.
5. Right-click on your graphics card adapter and select Disable.

After disabling the graphics card adapter, restart your computer and check if the LogonUI.exe error persists. If the error is resolved, it indicates that the graphics card adapter was the cause of the issue.

If disabling the graphics card adapter does not fix the error, you can try updating the graphics card driver. Visit the manufacturer’s website and download the latest driver for your graphics card. Alternatively, you can try disabling certain graphics settings like Antialiasing-Mode, as these settings can sometimes conflict with the LogonUI.exe process.

Note: Disabling the graphics card adapter or changing graphics settings may temporarily affect the display resolution on your computer.

Solution 5: Run SFC Scan

If you are facing a LogonUI.exe error on your Windows 10 computer, it could be due to corrupted or missing system files. To identify and repair these files, you can run a System File Checker (SFC) scan. This scan will help detect any issues with your system files and automatically fix them.

To initiate the SFC scan, follow these steps:

1. Start your computer in Safe Mode.
2. Open Command Prompt as administrator.
3. Enter the command sfc /scannow and press Enter.
4. Wait for the scan to complete. This process may take some time.
5. Once the scan is finished, restart your PC.

Running the SFC scan can help resolve LogonUI.exe errors by repairing any problematic system files. After restarting your computer, check if the error has been resolved.

Solution 6: Perform a Clean Boot

Sometimes, third-party applications or services can interfere with the LogonUI.exe process and cause errors. Performing a clean boot can help identify the problematic program or service. Start by disabling all non-Microsoft services and startup programs. Then, enable them one by one until you identify the culprit. Once identified, you can either keep the problematic service disabled or remove it entirely.

Performing a clean boot is a troubleshooting technique that allows you to start your computer with a minimal set of drivers and startup programs, eliminating any potential conflicts. This process helps isolate the cause of the LogonUI.exe error by temporarily disabling all unnecessary software.

To perform a clean boot:

1. Press Windows + R to open the Run dialog box.
2. Type msconfig and press Enter to open the System Configuration window.
3. Go to the “Services” tab and check the box next to “Hide all Microsoft services”.
4. Click the “Disable all” button to disable all non-Microsoft services. Make sure to leave the antivirus software enabled.
5. Go to the “Startup” tab and click the “Open Task Manager” link.
6. In the Task Manager window, disable all startup items by right-clicking each one and selecting “Disable”.
7. Close the Task Manager and go back to the System Configuration window.
8. Click the “Apply” button, then click “OK”.
9. Restart your computer and check if the LogonUI.exe error still occurs.

Note: Disabling essential services or programs may cause other issues. Make sure to carefully re-enable any necessary services or programs after troubleshooting.

If the LogonUI.exe error no longer occurs after performing a clean boot, it indicates that one of the disabled programs or services was causing the issue. To identify the specific program or service, you can enable them one by one and restart your computer each time, checking if the error reoccurs.

Once you have identified the problematic program or service, you have two options:

1. Keep the problematic service disabled: If the program or service is not essential and you can function without it, you can choose to keep it disabled. However, be aware that disabling certain services may affect the functionality of related applications or system processes.
2. Remove the problematic program: If the program or service is not necessary or causing significant issues, you can choose to uninstall it from your computer. Consult the program’s documentation or the manufacturer’s website for instructions on how to properly uninstall the software.

By performing a clean boot and isolating the problematic program or service, you can effectively troubleshoot and resolve LogonUI.exe errors on your Windows 10 system.

Solution 7: Run Startup/Automatic Repair

If none of the previous solutions have resolved the LogonUI.exe error, you can try running the Startup/Automatic Repair feature. This can help fix any underlying issues with your system that may be causing the error.

To access the Advanced options menu, forcefully shut down and restart your PC three times. Then, navigate to Troubleshoot > Advanced options > Startup/Automatic Repair.

Once the repair process completes, restart your PC and check if the error persists.

Important:

Running the Startup/Automatic Repair feature is not a guaranteed solution for all LogonUI.exe errors. It is one of the advanced troubleshooting options available in Windows 10, but its effectiveness may vary depending on the specific error and system configuration.

It is recommended to perform a backup of your important data before attempting any advanced troubleshooting steps to avoid potential data loss.

Solution 8: Perform System Restore

If you have previously created a restore point on your system, you can perform a System Restore to revert your PC back to an earlier state. This can help eliminate any software changes or updates that may have caused the LogonUI.exe error. Access the System Restore option through the Advanced options menu and follow the on-screen instructions to restore your system. Keep in mind that performing a System Restore will not affect your personal files, but it may uninstall recently installed applications.

Conclusion

Dealing with LogonUI.exe errors on Windows 10 can be frustrating, but there are several solutions available to troubleshoot and repair this issue. Whether you are experiencing an application error, error on startup, or general error messages related to LogonUI.exe, there are steps you can take to resolve the problem.

One of the initial steps you can try is using the Ctrl + Alt + Del keyboard shortcut to terminate unresponsive applications. This method may temporarily resolve the error, but further troubleshooting may be necessary. Disabling security programs for login, such as facial recognition software, or even disabling antivirus software can also help eliminate conflicts that could be causing the LogonUI.exe error.

If these initial steps do not rectify the issue, disabling the graphics card adapter, running a System File Checker (SFC) scan, performing a clean boot, running a startup/automatic repair, or utilizing the system restore feature can potentially restore your PC to a working state.

Remember to approach each solution methodically, trying them one by one until you find the one that resolves your LogonUI.exe error. By following these troubleshooting steps, you can regain access to your Windows 10 computer and eliminate the frustration associated with LogonUI.exe errors.