Toshiba PSA70U-09700E laptop, windows XP. I accidently shut off from power switch while moving laptop. I had just been invaded by a virus, Avast was identifying, and I hit switch and shut down.(Not my plan) When i went to reboot I couldn't get past window logo. Tried F2 and couldn't start in safe mode. Can't us CD as that was last weeks find. I have been trying to load drivers and updates through web and usb port CD player. At this moment I can start computer and it freezes at a black screen. I can access Bios but nothing works from there. Any ideas if virus contaminated basic program or is this a shut down error?? Thanks in advance.