Windows 8.1 has now been pulled as there were some problems with it…

OK lets reinstall using all V9 tools

Download Uninstall Utility to your Desktop.
Download the correct version of Avast
Avast Free
Avast Pro
Avast Internet Security
Avast Premier
Disconnect from the net
Uninstall Avast via control panel

[]Run aswClear
[
]It will offer to reboot to safe mode

https://dl.dropbox.com/u/73555776/aswclear.JPG

[*]In the Select Product to Uninstall dropdown choose the version of Avast that is on your system.
[*]Press Uninstall
[*]Once complete reboot your system to Normal Mode
[*]Reinstall Avast