Sometimes it´s not possible to uninstall avast! the standard way - using the ADD/REMOVE PROGRAMS in control panel. In this case, you can use our uninstallation utility aswClear.
1. Download aswClear5.exe on your desktop. (Use this link for download: http://files.avast.com/files/eng/aswclear5.exe)
2. Start Windows in Safe Mode
3. Open (execute) the uninstall utility
4. If you installed avast! in a different folder than the default, browse for it. (Note: Be careful! The content of any folder you choose will be deleted!)
5. Click REMOVE
6. Restart your computer.