I changed the Boot Priority Device to SanDisk CRUZE Usb stick. Next, changed Hard Drives to SanDisk CRUZE USB stick as no. 1. The BIOS recognizes a USB stick as a hard drive. After loading from the USB stick to the hard drive, you of course remove the USB stick and change the BIOS to giving the hard drive priority. Now I have handle BIOS update? Driver update? Unlock a Sempron 140 to dual core?