Changing windows boot drive sata config from "raid" to "ahci"  

So I have an AMD A88X motherboard in my htpc. For a few reasons I want to change the bios config for the sata controller from RAID to AHCI. I followed the instructions in this article: https://support.microsoft.com/en-us/...the-boot-drive to have windows load the ahci driver, but now I can't boot. If I switch the bios option back to RAID, it boots fine. If I boot in safe mode, the system hangs on loading classpnp.sys then reboots (probably because it loads drive.sys right before). If I run the start-up recovery, it has no problem loading the storage drivers and mounting the drive since I can access it from the command prompt. What can I do to boot properly? I'd rather not reinstall windows. Doing a repair type installation is an option but I have to get a bootable USB drive so a simpler solution would be nice. Thanks in advance!

Hi Kayson,

have a look at this tutorial,
AHCI : Enable in Windows 7 / Vista - Page 26 - Windows 7 Help Forums

go back to the first page


Roy

torchwood said:

Hi Kayson,

have a look at this tutorial,
AHCI : Enable in Windows 7 / Vista - Page 26 - Windows 7 Help Forums

go back to the first page


Roy

Unless I'm missing something, that appears to be the same as the MS support instructions I followed, and it didn't work. Any other ideas?

Ended up solving it with DISM.exe: Changing windows boot drive sata config from | Overclockers Forums

HAVE YOU TRIED TO SEE IF THERE WAS A BIOS UPDATE? AND OH, MAKE DAMN SURE YOU'RE CONNECTED TO THE WALL CHARGER. IF YOUR LAPTOP LOSES POWER WHILE WRITING TO THE BIOS, YOU JUST "BRICKED" YOUR LAPTOP.

AND, if you ever had a raid in the past, until you go into disk manager and remove the drives in question from the raid, you probably won't be able to go to ACHI because the drives are still linked. BEFORE MAKING ANY CHANGES THOUGH, MAKE SURE TO DO A BACKUP OF THOSE DRIVES.