Welcome, I installed Windows 7 with AHCI set from Bios ,but i wanted to use ide mode again because it boots faster and when i set Ide from Bios ,the windows 7 loading screen came up and BSOD (Blue screen of death) with an error code 0x0000005B , i tried the regedit trick by setting in the "HKEY_LOCAL_MACHINESystemCurrentControlSetServicesMsahci" and then in the right pan the START value from 0 i set it to 1 and it supposed to be working but it was a failure, it still did the BSOD.
Here are the pases:
1) I assume you have installed Windows Vista or Windows 7 with AHCI set from BIOS
2) Download my registry fix and simply apply the key, link below.
3) Now the manually regedit part Go to :
And in these three keys in the right pan you will find a key named "START" change all three (Msahci,iaStor,iaStorV) values from 0 To 1
Now navigate to
,then change the start value to "0"
Restart your computer, and go to Bios and set from AHCI to IDE, save settings in Bios and restart
Windows will be loading , No more BSOD, windows Vista/Seven will install new Ide drivers andyouu will see in windows device manager that you dont have AHCI drivers anymore and it will prompt for another restart , just restart it.