I just wanted to chime in. I'm running Win 7 64bit SP1 with the latest updates, and noticed the slide out notification saying avast needed to reboot due to an update.
Uh, I had updates set to manual TYVM.
And of course, upon updating and logging in, I was met with a solid color background with only my mouse cursor, I couldn't even ctrl alt del.
So after waiting about 15 mins, I had to do a hard reboot. I could get into windows, but avast kept complaining it couldn't load the GUI now and then, and that the AV service had stopped.
SO I repaired..and it kept saying I needed to restart.
I restarted THREE TIMES, and it kept saying the same thing in the main program window.
So I did the uninstall/clear/install, and now it seems ok.
Seriously guys, I have had issues with new versions before, that's why I usually wait awhile before installing, to see if anyone else has problems.
I don't appreciate the headache and wasted time/
And I also don't appreciate popups for your other products AFTER I'VE PAID FOR ONE OF THEM.