Amdsata Service Defaults in Windows 7
AHCI 1.2 Device Driver by Advanced Micro Devices.
Amdsata is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If Amdsata fails to start, Windows 7 attempts to write the failure details into Event Log. Then Windows 7 startup should proceed and the user should be notified that the amdsata service is not running because of the error.
Restore Default Startup Configuration for Amdsata
1. Select your Windows 7 edition and service pack, and then click Download.
2. Save the Win7_amdsata_Service_Startup.cmd file to a local storage device.
3. Run the saved file as an administrator.
4. Restart the computer.
The amdsata service is using the amdsata.sys file that is located in the %WinDir%\system32\DRIVERS folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 7 installation media.