Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: can't get AHCI to work again

02 May 2014   #1

Windows 7 Ultimate X64
AHCI won't work again after running AMD Clean Uninstall Utility

So I made the mistake of using the AMD Clean Uninstall Utility, which removed my chipset/audio/video drivers.

I had Windows 7 X64 Ultimate working perfectly with AHCI and I ran AS SSD which showed msahci was running 4k aligned and getting the maximum speeds.

However after I ran the AMD Clean Uninstall Utility now I can only boot in IDE mode. The Standard AHCI 1.0 Serial ATA Controller is no longer there.

My windows gets stuck on the boot logo if I try to set my hard disks to AHCI mode in bios. It only boots if I put it back to IDE mode. I do set the boot drive as the initial drive to avoid BOOTMGR errors and it always starts to boot, it just doesn't go past the boot logo in AHCI mode and it boots fine in IDE mode.

I ran driverquery in the command prompt and it says mshaci is loaded:

msahci msahci Kernel 11/20/2010 3:33:58 AM

So why does my system get stuck at the boot logo if I set the bios to AHCI? If I switch back to IDE the system boots.

If I try to boot it in safe mode the last system file that loads is CLASSPNP.SYS and the next file that is supposed to load after never does and it gets stuck at this spot.

I'm writing this message from the same machine, booted in IDE mode perfectly, just can't get AHCI to work again.

Windows 7 x64 Ultimate, AMD Phenom II X4 20 CPU, Gigabyte GA-MA790XT-UD4P motherboard.

My System SpecsSystem Spec
02 May 2014   #2

Win7 Pro 32bit

Did you alter your Registry accordingly? Setting the BIOS to use AHCI is only half the puzzle!
AHCI : Enable in Windows 7 / Vista
My System SpecsSystem Spec
02 May 2014   #3

Windows 7 Ultimate X64

Quote   Quote: Originally Posted by OvenMaster View Post
Did you alter your Registry accordingly? Setting the BIOS to use AHCI is only half the puzzle!
AHCI : Enable in Windows 7 / Vista
Yep of course, set msahci to 0 in registry.

I had it working perfectly by doing that, I just ran the AMD Clean Uninstall utility and it removed all device drivers for everything and after I rebooted it booted once, installed AHCI and never again.

It won't boot in AHCI mode anymore only PCIIDE.
My System SpecsSystem Spec


 can't get AHCI to work again

Thread Tools

Similar help and support threads
Thread Forum
cloned C:, installed AHCI drivers, changed BIOS to AHCI, D:'s GPT gone
see second post. I have a 3TB drive D: for data formatted with GPT. Had BIOS OnChip SATA Type set as "RAID" "As SATA Type" from back in the day. When I took out the RAID, I forgot to change this to AHCI when I reformatted and got rid of RAID drives! Changing to "AHCI" "As SATA Type" as...
Installation & Setup
No AHCI option in BIOS, is my computer default in AHCI or IDE?
I bought a brand new SSD, installed it in Windows 7, and there is no option in my BIOS for the SATA controller (to switch between IDE and AHCI Mode). How do I determine whether my computer's sata controller is using IDE or AHCI? I want to make sure that my AHCI controller is enabled and not IDE...
Hardware & Devices
AHCI will not work - I have edited the registry as recommended
I Have tried changing the registry msahci 'Start' setting to zero and have extensively googled looking for an answer. Most just mention editing the registry. I set the Sata Mode to AHCI in my Gigabyte EP35C-DS3R BIOS and I get a Bsod in windows whirly symbols startup screen my error dump...
Hardware & Devices
Can a Raid 1+0 configuration work in AHCI mode?
My Computer Configuration: (1) 128GB Solid State Drive (windows os) (4) 1TB (set in a raid 1+0 configuration) Here is the MYSTERY: I am currently booting to my ssd in ACHI Mode. yet the 4 hard drives show up as a single hard drive with a capacity of 2TB in explorer. The Question is: are...
Help going from IDE to AHCI
Ok, i have a raid-1 setup (non-boot, just backup) in sata 1&2 My SSD Vertex is in sata5 (IDE mode) In bios, i can have 1-4 and 5-6 different. But, for some reason, i cannot have 1-4 raid and 5-6 AHCI (I want my vertex AHCI, for better Multithreaded reads/writes. OCZ Forum - View Single Post...
General Discussion
Intel Sata controler ICH10R AHCI + Jmicron AHCI error
Hi. I have the GA-EX58-Extreme Board and have just installed the pre release of Win7 7600 64 bit. Normally i have experience to get the BSOD when in staling with AHCI active in bios so i change to IDE mode. Installation went flawless and also the change to AHCI mode on Intel ICH10R controler...

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 10:33.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App

Windows 7 Forums