This is a Presario C300 laptop with Win XP and a SATA hard drive. I want to install Win 2000 on a USB hard drive. When I boot from the 2000 disk I get to the part where it asks if I want to install or repair and I choose install. Then get the message that no hard drive is detected, press F3 to quit. Ive never run ibto this before. The computer runs perfectly and there are almost no settings in the BIOS.