Browse to your extracted drivers click the one you want AHCI and ok. Wed Apr 01, 4: It all depends on your controller manufacturer. December 16, at 5: You can do that without reinstalling your Windows XP. The majority of the programming is 32bit, and doesn’t have an adequate version in 64bit. This thread is locked.

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You can then identify your driver chipset from this information. Anyone trying to do this without installing Windows XP from scratch needs to find registry files specific to their own chipset and they may be hard to find if msachi exist at all out there.

I will choose the driver to install. I am going to suspect msaci windows does not care that you can leave part of the controller in IDE mode and have another part of the controller be something else. Remember me This is not recommended for shared computers. If you receive the User Account Control dialog box, click Continue.

Then try booting back into Windows and see if your drives are reported. All is zp and not so complicated to do, even easy.


Microsoft has apparently not seen fit to include an AHCI driver as part of a service pack. Find the driver the one you’d use on the F6 floppy install and manually install it.

How To Change Disk Controller Mode From IDE to AHCI Without Reinstalling Windows XP

The next step is to make sure you have a System Restore point available. In other words, the only way is to install third-party drivers. March 1, at 5: I’m going to try this again, and check every step to see if it replicates the problem. Thanks to anyone who can either help, or add some suggestions!

Otherwise, I am in a fog. mdahci

Backed out the two slave drives, and it booted fine. You can do that without reinstalling your Windows XP. Previous 1 2 3 4 5 Sounds like you are stuck on Step 2. I figure once this unit is fixed, I’ll be able to work on the mothballed unit, when the time is right.

Find all posts by Gary You mean before installing Windows XP?

How do I change Windows XP to use AHCI disk mode rather than IDE mode – Microsoft Community

Thank you redduc and thank you new member wolbur for posting about this which lead to this being corrected. You can do the same thing with DaemonTools Lite as well, or anything else that creates a virtual scsi controller. Don’t make or burn iso with nLite.


Often provided for, now? It starts recognising the existent drives in the new AHCI mode, and showing yellow bubbles.

Attachment to post 32 of this thread has both the AHCI files as well as clear instructions on how to intgrate them into the Windows XP installation. December 16, at 5: Windows was installed in msahcl C: You can run iastor. Now I got the stuff, time to try it. Andrea 1, 3 13 I checked my system, device manager, sys info, etc and could not find it.