I'm only halfway through my first bottle of beer, so right now I'd tell you to use the biggest ball-bat that you can find, and whack it until it cooperates.
After one more, I'd probably tell you to click on 'properties' or 'advanced settings' (whichever) under the 'ATAPI/ATA Disk Controllers', primary/secondary channel tab in device manager, and click on the drop-down menu to UDMA and restart.