Can you restart the computer and get it to Safe Mode with Networking:
As the computer starts, tap the F8 key. (You need to tap F8 before the Windows logo appears.)
On the Advanced Boot Options screen, use the arrow keys to highlight the Safe Mode with Networking option, and then press Enter.
Log on to your computer with your normal user account.
(When your computer is in Safe Mode, you'll see the words Safe Mode in the corners of your monitor.)
Post back on whether this works or not. If it does, we have a foot in the door, or something to begin with.
Also, what AntiVirus program is used in the system with the problem?
Retired - Doin' Dis, Dat, and slapping malware.
Malware Eliminator/Member of UNITE and the
Alliance of Security Analysis Professionals