K, I have a laptop that has a 500 gig hard drive and the complaint was that Windows wouldn't startup, Bootmgr is missing. The first thing I did was an std scan, Kaspersky 2012 found a few and I had to reboot to disinfect my machine since it spread to my drive.
After the reboot, I checked out what's in the hard drive and there's literally nothing but 1.5 gigs of files on it. I looked into the Windows folder and checked the gig amount in it, 1.3 gigs. There's no user data, or program data. It's almost like it was reformatted and Windows was gutted. Explorer.exe is gone.
At the moment, I'm running a file recovery on it and hopefully restore things back. But, my question is, how in the blue hell can something like that happen? Especially on 7, that is unheard of, at least to me.