I am a tech guy for a small company and a user called me and thinks she had a virus. but said when she came in the morning, the system was stuck on the HP screen (where it asks to press 10, F2 etc) to enter bios etc.
When i disconnect the drive, I can enter the bios, but only when I connect it again, it doesn't allow me to get into bios or any other setting. it does not event get as far as to show the windows splash screen. Helps.