0

I've used Clonezilla to copy my Windows installation to a new drive. I have done a disk-to-disk copy, from the old SATA SSD to the new NVMe SSD. Upon removing the old drive, the new drive boots just fine and everything works. However, when I plug in the old drive and try to boot the new one, it will fail to boot with an INACCESSIBLE_BOOT_DEVICE, before the old drive is picked up and boots just fine.

With the old hard drive unplugged and plugged in on separate attempts, just to be sure, I have tried:

  1. Using a Windows installation media to run Windows Startup Repair. It couldn't find any issues.
  2. Using the same Windows installation media, Bootrec /fixMbr followed by Bootrec /fixBoot. I have also tried Bootrec /RebuildBcd on a separate attempt. No combination has returned any good results.

So my question is, what can I do so that Windows will boot from the new drive while the old one is still plugged in?

Improve this question
9
  • 2
    This probably has to do with two drives with identical EFI partitions. This is evident by the fact the system boots to the old drive while plugged in, at least thats what it appears your saying if not you should clarify your question by editing it
    – Ramhound
    Commented Jul 18, 2023 at 21:15
  • 1
    @Ramhound What you described about the system automatically booting the old drive after the new one fails is correct. I've edited my question a bit for clarity. I think I remember finding a similar question that described a way to reset or modify the EFI partition or something similar, but I can't find it now. Seems to me though that there wouldn't be any problem with just wiping the old drive and moving on with my life instead.
    – Darkshadows
    Commented Jul 18, 2023 at 21:31
  • @Ramhound I just realized that both disks are MBR. Isn't an EFI partition solely a UEFI thing?
    – Darkshadows
    Commented Jul 18, 2023 at 21:36
  • 1
    You installed Windows 10 on a NVMe device in Legacy Mode? That’s one issue…are you positive you are actually booting from the new device?
    – Ramhound
    Commented Jul 18, 2023 at 21:42
  • @Ramhound The old drive is physically removed when I load from the new one, so yes, I'm absolutely positive it's booting the new one. I double checked and it is in legacy mode while doing so.
    – Darkshadows
    Commented Jul 18, 2023 at 21:45

1 Answer 1

Reset to default
0

I did the exact same procedure you explained with Clonezilla and got same result as you.

I fixed it by changing boot mode for the PCI devices from UEFI to legacy, this allows the PC to boot from the new SSD, but the old disk has to be disconnected.

Before I can use both disks I removed the new one, connected the old disk and formated it also using Clonezilla, so it doesn't cause conflicts.

enter image description here

Improve this answer
0

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .