DavidR
14
- It is a multi version uninstaller, but you select which version to uninstall, it doesn’t uninstall versions at once.
As doktornotor mentions, an update from avast 5 to avast 6 rather than a clean install will retain some of the old data/registry locations as it is too big a job trying to change all the registry entries. A clean install of avast 6 is in c:\Program Files\AVAST Software\Avast\ otherwise it would be c:\Program Files\Alwil Software\Avast5\