Change Windows 10 install FROM AHCI to IDE/ATA after installation

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firefoxforme

I need to change an existing Windows 10 Home 64-bit installation startup drive from AHCI to IDE (a step backwards, but is needed to accommodate another operating system in a multi-boot environment.) I do not wish to install Windows 10 again. I am able to change the motherboard BIOS setting between AHCI and IDE/ATA and have verified that this is effective. Until I make some change to Windows 10 to allow it to start from IDE/ATA drive, it cannot complete the start-up process in the IDE/ATA mode.


I have found many instructions for Windows 10 on going from IDE to AHCI, but none in the other direction (FROM AHCI to IDE/ATA)


The procedure below (URL) DID work for me with Windows 7 when tried previously, but I cannot assume it will work for Windows 10.


I am looking for a step-by-step procedure such as the one posted in April 24 2013 by Balaji Kundalam which was very clear and thorough treatment of the issue for Windows 7 users.




Thank you for guidance

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