I have a customers Dell Dimension 8400 desktop PC.. They complained of problems with Internet access.. I ran Malwarebytes first to see what I would come up with.. It picked up various (24) hits, mostly adware, a couple of trojans, and a few registry changes... I went ahead and let Malwarebytes clean it up as I had done many times before with good results. It cleaned them and said it needed a reboot to complete the cleanup... I did the reboot and the system locked up with the Windows message "Windows is shutting down". It sat there for over 20 minutes, so I decided to power off manually. On restart the unit never goes through the BIOS part of bootup, it simply displays the message... "RV100 P/N 113-85504-102 DDR with DLL BIOS". I cannot get it to go into BIOS setup using the typical FKeys or esc. Any suggestions?