A friend offered me (free) an approx 4 y/o Dell desktop which has been infected with a virus. He bought a new computer rather than deal with the problem. I have a 250G sata H/D that I'm presently not using. I'd like to use the computer for a home entertainment system. Will replacing the drive on the infected computer solve the problem or can the virus have corrupted the BIOS or other areas that I may not be aware of? Thanx