5 ways to fix Avastui.exe application error
- Avastui.exe error occurs when some of the user interface files are corrupted or the interference of a third-party plugin.
- There are a lot of error messages you can get, but cleaning the temporary files is a great way to fix all error associated with this application.
- The primary fixes to these errors are restarting your computer or repairing the avast antivirus software.

The avastui.exe is an executable file part of the avast antivirus that launches the software’s user interface. A corrupted file can cause the avastui.exe error to interfere with your computer’s usage.
A bug in the latest Avast update can cause an error like Avast error 42102. It’s also possible for third-party software to cause a conflict with the antivirus software.
You’ll get many error messages when avastui.exe isn’t working correctly. Here are some of the more common errors:
- Avastui.exe bad image: This happens when there are errors in the latest Avast update.
- Avastui.exe application error: You’d see this message when the registry entries are corrupt.
- Avastui.exe cannot start correctly: It’s primarily because of bad registry entries.
- Avastui.exe high CPU usage: The Avast software performs many background operations which can consume high CPU power.
- Avastui.exe is missing or corrupt: It means Avast couldn’t find a necessary file at startup.
- Windows failed to start Avastui.exe: An error that results from Avast’s incompatibility with Windows.
- Avastui.exe is not running: When you see this error, it’s usually the interference of other software.
How can I fix the avastui.exe application errors?
1. Uninstall and reinstall the Avast antivirus program


You can often resolve the Avastui.exe application error by uninstalling and reinstalling it. After uninstalling, go to the Avast official website and download the latest avast antivirus. Then install the software.
2. Repair Avastui.exe entry point not found


Usually, repairing the software will remove the error message. However, if that doesn’t work, check the next solution.
3. Using Avastclear.exe to fix the avastui.exe error




Running the avastclear.exe in safe mode



If you can’t uninstall the software the standard way, use a specialized tool like CCleaner to automate the process.
4. Perform a Windows update


Sometimes outdated Windows 10 operating system can cause the avastui.exe application error.
5. Restore from a system restore point



The system restore point should be the last resort since it can cause a lot of the software and files to be deleted. If you want to use this solution, it’s essential to back up your files.
The above methods can help you resolve the avastui.exe application errors. If you’re facing other Avast antivirus errors, there are articles on this website that will help you troubleshoot the problems.
Did you find a different solution for this problem? Share it with us in the comments section below.
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