Amdsata Service Defaults in Windows 8
AHCI 1.3 Device Driver by Advanced Micro Devices.
The Amdsata service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If Amdsata fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the amdsata service hasn't been started.
Restore Default Startup Configuration for Amdsata
1. Select your Windows 8 edition and update pack, and then click Download.
2. Save the Win8_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 corrupted or deleted, you can put it back in there.