How to change from IDE to AHCI without reinstalling Windows
http://www.neowin.net/news/neowin-guide-how-to-change-from-ide-to-ahci-without-reinstalling-windows Run the Registry Editor (regedit.exe) Navigate to Registry Key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci Set the “Start” value to 0 (zero) Navigate to Registry Key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Pciide Set the “Start” value to 0 (zero) Shut down Start up again, but before Windows boots go into the BIOS configuration screens and change the disk mode to “AHCI”. Save the new … Read more