Can't boot after Bios switch from IDE to AHCI and back again

[guidopanzini]

I have created my own problem but Im stuck. In trying to help the Motherboard (Hmmpf! Dumb me!) I tried switching the AHCI Mode from IDE to AHCI. That caused a failure to boot. So I changed it back to IDE. The computer failed to recognize the boot drive as such. I removed it and installed it into another windows 10 computer and could run an analysis on the drive. That returned an error, and I was offered a repair. I accepted, and it succeeded. I ran the analysis again, and all seemed well. Putting it back into the original computer, and checking that it was listed as the boot drive, it still failed to boot. Im not certain what to do. I may be able to back it all up and reinstall, as I can see the data on the disk using the console window, but Im not sure what if anything I should do there. HELP!?

 

[marksavio]

get a win10 installer and boot with the USB Uefi and do the repair operations from there.
https://www.microsoft.com/en-in/software-download/windows10

since you originally want to set it to AHCI. set your BIOS to SATA mode AHCI during the fix. next time if you want to change SATA modes, you have to set your windows to boot to safemode before doing so.