I had problems replacing my nearly full PATA 160 GB hard drive with a new larger 1 TB SATA drive. I used HDClone 3.7 to clone the old to the new drive. When I disconnected the old drive, XP would not start-up. I tried installing SATA driver for without success, the BIOS detects the drive OK. So I connected both drives and XP started with errors. Looking at My Computer the new drive was C: and the old drive was F: Now XP doesn't boot from my previous old drive alone because it has changed from C: to F:. How can I get either drive to boot up?