To solve annoying Windows errors, you might want to try a Windows Registry Check. In most cases, optimizing the Windows registry will speed up your Windows.
@PcFreak : If he does a Format his System is surely f..cked, cause this will delete the OS too.
@Fill : all I can say is: something seems to not be properly connected, cause your request lacks a bit of information. Anyway, I guess you should check Power-cable and if it is plugged in right on both sides