I’ve had exactly the same problem. If I delete the reboot.txt file, it reappears next time I use my computer, and avast still wants to restart after ever update.

When I look in the registry, I don’t have PendingFileRenameOperations in the key HKLM\System\CurrentControlSet\Control\SessionManager.

Can someone please explain how I run the registry fix at http://public.avast.com/~forejt/Enable8dot3Name.reg ? It just looks like a string of test to me.

Apologies if I’m asking this in the wrong place.