I'm not amazingly good at all the technical stuff but i did check. I has to use an adapter becaues my new mobo doesnt have an IDE connection. When i checked it was in IDE MODE, i changed it to AHCI but it hasn't made a difference.
If you want this working properly, get a new drive, install Windows 7 on that clean. If it's a pre-built system, the vendor should be able to send you a restore disk for maybe $30 or so.