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I turned off SATA hard drive in BIOS and loaded win 7 how I cant get it back

Last response: in Storage
January 10, 2010 2:58:54 PM

I turned off SATA hard drive in my Vista lap top BIOS and loaded XP PRO. It worked great. Then 1 1/2 years later I loaded Win 7. How can I get back to SATA? When I change it, it don't see the HD.
a b G Storage
January 20, 2010 3:41:57 AM

Unplug the hard drive, reset the CMOS, then replug.
a b G Storage
January 20, 2010 6:55:18 PM

You will need to turn on SATA in the bios and reinstall windows 7.
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January 27, 2010 2:55:26 AM

Thanks, to you both. I'm going to try the 1st one and then do the second if that don't work. I'll do a clean install too.

Best solution

a c 415 G Storage
January 27, 2010 6:49:20 AM

The following technique can be used to switch from IDE-mode drivers to AHCI-mode (the native mode for SATA) in Vista or Windows 7:

1) Run the Registry Editor (regedit.exe)
2) Navigate to Registry Key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci
3) Set the "Start" value to 0 (zero)
4) Shut down
5) When you restart, go into the BIOS configuration screens and change the disk mode to "AHCI". Save the new configuration and restart so that Windows boots.

When Windows starts, it will detect the change, load new disk drivers, and do one more reboot to start up with them.
January 28, 2010 1:32:49 AM

Best answer selected by tim1501.
January 28, 2010 1:35:17 AM

Sminlal, Outstanding! I did it just like you said and it worked just like you said. It wasn't even hard. Thanks so much. Now I'm back on track.
a c 415 G Storage
January 28, 2010 2:31:41 AM

You're welcome!

I've never actually had to do this myself but I've seen a number of posts where this has been recommended and it seems to have worked for everyone who's tried it.