Windows 10: Enable AHCI in Windows 8 and Windows 10 after Installation

for AMD users (old laptops) from 2009 to 2013

I managed to get my old G6-1d48dx running smoothly on Windows 10 using this method!
(Please note that not all G6's can use this method and you should proceed at your own discretion!)

Steps to fix this error:

1. Download BIOS revision F.46 (You most likely have F.48 or F.49) if it is available for your laptop (Go to the Windows 7 Drivers section>BIOS>Previous Versions).

2. Install the older BIOS

3.After installing the older BIOS, your laptop most likely will not boot fully, it should give a BSOD and restart, let it do this twice and the third time it should attempt to perform a startup repair THIS WILL (AND SHOULD) FAIL!

4. After startup repair fails, click on "Advanced Options"

5. Click Troubleshoot>Advanced options>Start-up settings

6. Click restart

7. When you see the start-up settings screen, press "4" on your keyboard

8. You will then boot into safe mode, do not log into your computer when presented with the login screen, just press Power>Restart

9. You should be able to fully boot into Windows now

10. Put the computer to sleep and wake it, it should now fully work!

The issue was that the newer BIOS breaks the way Windows 8/10 read the SATA configuration and downgrading the BIOS fixes it.

Enjoy!

there's no need to edit registry or going to BIOS because 90% of laptops are set to ACHI SATA as default settings
i hope this one helps let me know!

thanks

 

Hi, I can't seem to get past step 12. When I attempt to do so (from 3 to 0), I get a message: Error writing value to new content. I am trying to change from IDE to AHCI to install Samsung SSD EVO 250. Magician indicates my current hard drive is not supported.
Motherboard GA-P35C-DS3R
HDD WDC WD1600JS-00NCB1
Windows 10

 

Hello Perkybunch, and welcome to Ten Forums. *Smile

If you are wanting to install Windows 10 to the new SSD, then you could set your BIOS to use AHCI, remove the old HDD, connect the new SSD, and clean install Windows 10 to the SSD.

If not, then check to make sure that you are the owner of the StartOverride registry key, and have its permissions set to "Allow" you "Full control" of the key. Afterwards, see if you are able to modify the "0" DWORD.

Change Owner of File, Folder, Drive, or Registry Key in Windows 10 Windows 10 Security System Tutorials

 

safemode was the only thing that worked for me. My boot disk is a NVMe M2 flash drive. Interestingly after having my system now sucessfully working in AHCI mode, both iaStorAV\StartOverride\0 and storahci\StartOverride\0 still have the value 3. So probably NVMe uses a different set of drivers, but safemode knows about it.

 

Hello aweiler, and welcome to Ten Forums. *Smile

It's normal for the value of StartOverride\0 to automatically get set back to 3 after a restart. Manually setting it's value to 0 just helps allow the change to AHCI to take place.