I had the same thing happen three days ago. Same virus that eventually incapacitated the operating system by blocking and removing more and more stuff. I eventually was able to run microsoft security essentials and remove the trojans, but there was still too much damage to use the computer. I tried everything but eventually had to do a system recovery which formats the hard drive and goes back to the originally installed operating system and settings. Lost everything, but fortunately I keep all important files and all my bookmarks on a thumb drive. Working fine now...again.
I've had a thumb drive die. I would suggest multiple backups if it's important.
I didn't lose anything. I'm running Windows XP but it probably doesn't matter which version of Windows you have.
Get to Documents and Settings and you should see your old user accounts along with your current user accounts. Your old data files and pictures should be in the old user accounts.
You can click on My Computer, C: and Documents and Settings.
Same here, also had to do the same thing.