I scheduled a boot-time scan (using Avast free edition) and then clicked the “Restart computer” button. On the subsequent reboot, it gets as far as detecting my drives, and then freezes. I thought it might just be a delay because it was doing the scan, but I left it for a few hours (far longer than a regular scan took), and nothing happened. I restarted and it froze in the same spot. Any ideas on what is happening or what I can do?
I went into the BIOS settings at startup and changed the boot sequence (I have an old OS (Win98SE) installed on the primary partition of a second hard drive) and got it to come up. I guess that must have cleared the pending boot scan somehow, because after that I could boot to my main hard drive (running WinXP sp2). I still had all kinds of bizarre problems, but I uninstalled Avast and then they went away. The version of Avast I had was 5.0.677.