New Motherboard and Processor Install, Windows 7 won't boot after many attempts to fix, running out of options and hope

mlg129

Reputable
Jan 10, 2016
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4,520
Hello,

I just upgraded my motherboard from a ASRock Z68 Extreme3 Gen3 to a ASRock Z97 Extreme6, and my old Intel Core i5-2500K Sandy Bridge Quad-Core 3.3GHz processor to a Intel Core i7-4790K Devil's Canyon Quad-Core 4.0 GHz.

After many attempts to get my copy of Windows 7 to work again, I have been unsuccessful. My computer will boot up Windows when I switch the BIOS memory option to IDE, but it will not boot up in AHCI mode.

Here is what I have done to try to mend my computer:

Switch from AHCI to IDE to install new Motherboard drivers, switched back to AHCI, Windows did not boot.

Successfully re-activated windows by myself in IDE mode. Windows did not boot when switching back to AHCI.

Called Microsoft support to get assisted re-activation. Re-activation was again successful, but Windows still would not boot in AHCI.

Attempted system repair numerous times, each time Windows says it is unable to solve the issue.

Attempted system restore to a time before upgrading hardware, it failed at the last moment.

Used the memory check in system restore options, no issues were found.


I tried googling my current issue, but to no avail. So I decided to make an account and post here, as it's where I found suggestions to do all of the above.

I'm not sure what to do anymore, and am in dire need of assistance.

Any suggestions would be helpful, and thank you very much in advance :)
 
Solution
So under IDE you have the new drivers loaded for AHCI? If so boot into Safe mode under IDE and go into the registry, then

1) go to the Registry Key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci

2) Set the "Start" value to 0 (zero)

3) Go to Registry Key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Pciide

4) Set the "Start" value to 0 (zero)

5) Close the registry and restart, going into the BIOS and change the disk mode to "AHCI". Save the new BIOS configuration and restart so that Windows boots. It should 'activate' the AHCI drivers and should be good

Tradesman1

Legenda in Aeternum
So under IDE you have the new drivers loaded for AHCI? If so boot into Safe mode under IDE and go into the registry, then

1) go to the Registry Key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci

2) Set the "Start" value to 0 (zero)

3) Go to Registry Key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Pciide

4) Set the "Start" value to 0 (zero)

5) Close the registry and restart, going into the BIOS and change the disk mode to "AHCI". Save the new BIOS configuration and restart so that Windows boots. It should 'activate' the AHCI drivers and should be good

 
Solution