Hello, hoping someone can put my mind at ease here. A couple of days ago I started my laptop and before the option screen (Windows 7 professional dual boot with Ubuntu) it said something about updating registry (unfortunately I cannot remember the exact wording), then just before the log on screen it said configuring windows as if it was the first time I'd used the computer. I found this odd as it has never done it before, slightly worried it is some sort of virus action? Later it crashed and while rebooting a 'safe mode looking' window that I have never seen before came up asking if I wanted to restore the system to an earlier date, I pressed cancel as it was something I'd never seen before and was worried that a virus had taken over... The computer is functioning normally and I have scanned for viruses with Avast Internet Security which found nothing. I was a bit spooked by the whole thing as I've not seen it do that before, is the 'updating registry' and 'configuring windows' bit to do with windows update?