Windows doesn't boot when I set the bios to AHCI (ssd)

TheCenturion

TheCenturion

TheCenturion

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18 Mar 2008
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For a while now, I've been running my intel v ssd. However, I only today went into the bios to find that the sata mode is 'ide'. So I've changed it to AHCI and windows now won't boot, it only boots in ide mode.

What other info would you need to help me? In the bios, my main hd is listed as HD1, and my ssd is listed as HD2

Thanks :)
 
iirc you have to install windows with AHCI enabled, it will then install the relevant drivers.

You might be able to fix it through the repair console on the install CD but I've never tried it and never looked into it, I'm sure someone who has will be along shortly
 
I've found this:

1. Exit all Windows-based programs.
2. Click Start, type regedit in the Start Search box, and then press ENTER.
3. If you receive the User Account Control dialog box, click Continue.
4. Locate and then click the following registry subkey:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci

5. In the right pane, right-click Start in the Name column, and then click Modify.
6. In the Value data box, type 0, and then click OK.
7. On the File menu, click Exit to close Registry Editor
Click to expand...

I want to stay away from reinstalling windows :\ I might not bother, and just keep it in ide mode, it's just a standard entry level ssd.
 
If you have a mechanical disk spare you could clone your install to that in case the reg editing breaks something... If that SSD does not support trim there is little to gain moving from IDE to ahci though
 
Just edit the registry then change to AHCI, with those instructions above it couldn't be simpler. TRIM has nothing to do with it since it's supported in both Windows 7's default IDE and default AHCI drivers anyway.
 
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