Enable the ahci mode after the win7 Registry

In the left-side title bar of the registry editor window, Locate the HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ msahci branch, and double-click Start in the right-side window ".

In the "Edit DWORD Value" dialog box that appears, change the value in the "value data" box from 3 to 0 (for example, 2), and click "OK.

When you restart the computer, enter the BIOS settings page and change the hard disk to ahci mode. For example, for the author's computer, press the F1 key to enter the BIOS when starting the computer, and select devices → ata drives setup → configure SATA as → ahci (3) in sequence ), press F10 to save and exit the BIOS.