To uninstall Avast Driver Updater from your PC, follow the steps below according to your version of Windows.
Instructions
- Log into Windows as a user with administrator permissions and ensure no other applications or antivirus software are running on your PC.
- Right-click the Windows
Start button and select Apps and Features from the menu that appears. 
- Ensure that Apps & features is selected in the left panel, then click Avast Driver Updater, and select Uninstall.
- Press the
WinXkey simultaneously, then select Programs and Features from the menu that appears.
- Right-click Avast Driver Updater, then select Uninstall/Change from the drop-down menu.
- If prompted for permission by the User Account Control dialog, click Yes.
- Click Uninstall on the Avast Driver Updater setup screen.
If you are uninstalling Avast Driver Updater version 2.x or lower, you will not see the Avast Driver Updater setup screen. Instead, wait while Avast Driver Updater is removed from your PC and skip the remaining steps in this article. 
- Click Uninstall to confirm.
- Wait while Avast Driver Updater is removed from your PC.
- Click Done to exit the Avast Driver Updater setup wizard.
- Log into Windows as a user with administrator permissions and ensure no other applications or antivirus software are running on your PC.
- Click the Windows
Start button and select Control Panel. 
- Under Programs, click Uninstall a program if you are using the default category view,
...or click Programs and Features if you are using the large/small icons view. 
- Right-click Avast Driver Updater, then select Uninstall/Change from the drop-down menu.
- If prompted for permission by the User Account Control dialog, click Yes.
- Click Uninstall on the Avast Driver Updater setup screen.
If you are uninstalling Avast Driver Updater version 2.x or lower, you will not see the Avast Driver Updater setup screen. Instead, wait while Avast Driver Updater is removed from your PC and skip the remaining steps in this article.
- Click Uninstall to confirm.
- Wait while Avast Driver Updater is removed from your PC.
- Click Done to exit the Avast Driver Updater setup wizard.
Avast Driver Updater is now uninstalled from your PC. To reinstall Avast Driver Updater, refer to the following article:
- Avast Driver Updater 20.x
- Microsoft Windows 10 Home / Pro / Enterprise / Education - 32 / 64-bit
- Microsoft Windows 8.1 / Pro / Enterprise - 32 / 64-bit
- Microsoft Windows 8 / Pro / Enterprise - 32 / 64-bit
- Microsoft Windows 7 Home Basic / Home Premium / Professional / Enterprise / Ultimate - Service Pack 1, 32 / 64-bit