You may be likely to get this error on restarting Avast after you upgrade when you restart your machine and attempt to start Avast: “Avast UI failed to load. It’s very uncomfortable. The’ Leave’ and’ Restart System ‘ keys are included in the error dialog.
If it does not help to uninstall or restart the Antivirus program, here is how you can patch it so Avast user interface can open without a problem.
Note: The Avast Software has fixed this issue if you have encountered a UI that did not activate the dialog on Windows 10 April 2018 Update. For additional details,
Avast has verified Avast will cause this error with the incorrect configuration of Windows Services so you are trying to resolve this before trying to restore or reinstall Avast.
The’ UI failed to load. AV application failed to respond’ error Repair Avast’
1. Open Run and Services.msc form dialog and click Enter
2. See’ Remote Mobile Applications’ in the Apps Monitor,
3. Double-click on the’ Enable’ boot form to make sure the device operates, click on the’ Start’ tab.
When you restart Avast, the UI will load without displaying the error that you have previously got.
Other Reference Link:- Avast UI Failed To Load Windows 10
