I work at a pc repair shop where we install Avast free edition for our customers after getting rid of viruses. I am beginning to notice a recurring issue since the change to allow a boot time scan in either 32 or 64 bit windows. Every time that I install Avast on a windows vista machine, update the latest definitions, then schedule a boot time scan on just the system drive (unchecked unpack archive files), the avast ui freezes after hitting the schedule button. If I try to click on restart from the avast window, nothing happens. I am able to click start, then choose restart that way, but it ends up sitting there, never closing any windows/programs. I even try to do a command line prompt (with correct admin rights) shutdown -r -t 1 to force the pc to shutdown in 1 second, but it never does.
It doesn't matter if vista is 32 or 64 bit, if there is no service pack, or sp 1 or 2 installed, it does the same behavior. Is this a bug, or something else? Just happened to me on a vista home premium 32 bit pc, with service pack 2 installed.
If I install Avast, update it, reboot, then when it comes back into windows, I can configure the boot time scan without any lockup or issue. This doesn't happen if using win xp or 7. Also once Avast 6.x is no longer in beta phase, I will see if its been fixed.
Any help on this?