Since all these Linux Monkey's aren't being helpful I'll try...
If you can get it booted up again check google for the error message. Then download spybot search and destroy and kill any spyware on your machine.
Then, abandon Internet Explorer and use Firefox (
www.mozilla.org) as it will help you avoid that bad IE programming that can make your problems worse.
Disclamer (I'm a UNIX Expert and I use Linux every day)