I am currently using a Compaq with Windows XP and Service Pack 2. I was using my computer this morning with no problems, when I came across a malicious site that installed a program known as Antimalware doctor. Recognizing this as a virus, I figured a System Restore would be the easiest way to rid my system of the malware. I did a System Restore, picking a date that was two days previous. When my computer restarted in order to perform the system restore it could not boot. Now I am unable to boot my computer, even in safe mode. I'm stumped as to why it would do this - any help is greatly appreciated.