Windows 10: Windows 10 won't boot on AHCI without first switching to IDE on BIOS, then back to AHCI

Please I need someone to save me because this is making me go insane. I'm using Windows 10 Pro 21H1I'm no computer expert but recently a friend suggested I buy an SSD and install my SO in it to improve my PC's performance. He works in tech so he helped me set everything up by sending me the instructions.I installed the SSD, installed Win10 Pro on it, kept my HDD as storage and everything was fine and dandy. I turned off my computer and the first time I went to turn it on after installing Win10, it wouldn't boot. As in my BIOS logo would appear, and then my monitor would say it had no input s

:)

 

AHCI vs regular Native IDE


If you want to change IDE to AHCI in windows 10, without a clean install, do the following steps:

• Open Command Prompt (Admin)
• type: bcdedit /set {current} safeboot minimal
• Restart PC and go into you BIOS -> Set IDE to AHCI
• Windows 10 will start if Safe Mode
• Open Command Prompt (Admin)
• type: bcdedit /deletevalue {current} safeboot
• Restart and Windows 10 should load with AHCI enabled now

Until now, I had a 100% succes rate with this, but in the case Windows 10 wouldn't start, go back into your BIOS and set AHCI to IDE.

 

Windows boot manager doesn't recognize AHCI/SATA SSD

Hi,

I have seen multiple instructions to do this, but can't find the ones I saved, but I did find this...

https://winaero.com/blog/how-to-switch-from-ide-to-ahci-in-windows-10/

There is a registry setting that needs to be switched to ACHI while booted in IDE... Then restart... enter Bios, and switch to AHCI...

The article in the link describes a different method involving Safe Mode that bypasses the registry tweak... Supposedly after booting to Safe Mode and restarting the machine... entering Bios... switching to AHCI... and then restarting... The switch should
be made to ACHI automatically...

Go by the article though... I have personally never had to try this..

 

Windows 10 Recovery Boot Loop after switching from AHCI to IDE!

So, for some time I had dual boot with Windows 7 and Windows 10 installed.
Recently I changed my motherboard, and it all seemed fine for some time.
Windows 10 worked just fine.

Then one day, I decided to go back to Windows 7 to do some stuff I couldn't on the new OS.
It was stuck in a boot loop.

The fix for that was to switch from AHCI to IDE SATA option in UEFI Bios (ASUS).

It did fix Windows 7, and it worked flawlessly. Up until the point... where my Windows 10 couldn't boot up at all.

So what happens now, is windows 10 is stuck in a recovery menu, creating that error log file.

What seems to be strange is the way boot behaves.
My C: drive is set to Windows 10. Yet when I list all the partitions it shows Windows 10 as letter D:.


And even more interesting, that error log goes to letter I:

When checking that partition it shows it as hidden.

Tried the method with registry... where you would backup and replace the config files.

Really in need of help.

Also when switching back from IDE to AHCI, nothing happens. Basically says that none drives have Windows installed.


List of drives shown from Windows 7:





List of drives shown from Windows 10 (When it was still working):