Thank you for asking your question on Just Answer,
I have been researching this error message and found the following documentation,
Judging from similar posts here in the past month or so, the behavior is or may be due to a Vundo-ZLOB-SDBot infection, all of which is protected by a rootkit. Unexplained computer behavior may be caused by deceptive software http://support.microsoft.com/kb/827315
Let me ask what Antivirus / Spyware Software are you running on this computer?