Can I enable AHCI after installing Windows 7 in a SATA drive that was on IDE mode?
1 Answer
You need to make the msahci
and/or IastorV
drivers be loaded early.
(Note: For Windows 10, the built-in driver is called storahci
.)
According to Microsoft KB 922976, run Fix it 50470 or open regedit, navigate to one of these keys:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\msahci
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\IastorV
and set the value of the Start
dword to 0.
Reboot and enable AHCI in BIOS, now it should work.
Remember to create a restore point before any changes, just in case.
The same registry changes can be done via Cmd, using reg add
or sc config
:
Check current parameters (and make sure the service exists):
sc qc msahci
Change the boot mode:
sc config msahci start= boot
(Note that
start=
is a single parameter, butboot
is separate.)
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