Dual-boot 10+7 HDD cloned to NVMe won't start from NVMe  

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  1. Posts : 9,292
    Mac OS Catalina

    glnz said:
    bro67 - As this was my second time following exactly that article, I was pretty careful. Yes, I might try it again from scratch, but I don't think that will be the answer.
    If you have multiple drives with different OS's on them, the first step is testing each drive to see if it will boot on its own. The second is making sure the boot manager is correct for which drives have which OS on them, etc. Do not use the Windows Boot Manager, use either Clover or rEFInd.
      My Computer

  2. Posts : 40,427
    windows 10 professional version 1607 build 14393.969 64 bit

    See if there is anything useful in this google search link:

    Just a moment....
      My Computer

  3. Posts : 318
    Dual-boot Win 7 & 10, both Pro 64-bit, now with a Hyper-V VM of Win 11
    Thread Starter

    SIW2 said:
    windows 7 works fine on nvme as ms provided nvme updates

    SIW2 - your comment finally inspired an idea: When I modified my BIOS per the Tachytelic article I link to, especially when I added the line for NvmExpressDxe_Small into the BIOS per that article, does my BIOS now expect to find the NVMe drivers in my Win 7 and so (even in my original HDD) my Win 7 startup hangs because Win 7 doesn't have them yet?

    Also, is your link the only stuff I have to run to insert NVMe drivers into Win 7? Both msu files or only one?

      My Computer


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