[Windows] - Change ATA mode to AHCI mode Windows 7

 *Note : If you don't know how to change BIOS SYTEM don't follow the instruction.


- Boot to the windows normaly.
- Click Start -> press regedit to the search box -> Enter

- Locate and then click the following registry subkey:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci

- In the right pane, right-click Start in the Name column, and then click Modify.

- In the Value data box, type 0, and then click OK.

- Restart the computer, go to the BIOS SYSTEM. Change the value ATA to AHCI mode.