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I recently installed a second NVME SSD drive and can't get Windows to recognize it. My setup looks like this:

  • System: AsRock X470 Taichi, Ryzen 5 2600X CPU
  • C: - 250 GB Samsung 970 EVO (M2_1 slot)
  • D: - 2 TB Samsung 980 Pro (M2_2 slot)
  • F: - 12 TB RAID 10 (4 x 6 TB SATA drives)

My Windows 10 installation is on C: and can't see the D: drive no matter what I do. I have the Samsung NVME drivers installed and everything is up to date. The drive doesn't show anywhere in either Disk Management or Device Manager. I've checked Storage Spaces and there's nothing there, either.

The BIOS and multiple boot disks have no problem seeing the drive and I was even able to install a second copy of Windows to it, but the original OS still can't see it. I'd really rather not start all over from a clean installation, any ideas?

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  • If you boot from the second copy of Windows that you installed to it, can it see the previous disk (which will probably be named D)? (Add to your comment @harrymc for me to be notified.)
    – harrymc
    Commented May 8, 2023 at 17:53
  • @John It's not visible to any Windows tool on the installed OS. I've formatted using a boot disk, but that doesn't change anything.
    – Steve Cygan
    Commented May 8, 2023 at 17:55
  • @harrymc Yes, the second installation sees all the drives with no issues. I don't see any specific difference between the two installations. In Device Manager, it shows them both using the same standard drivers for both of the SSDs.
    – Steve Cygan
    Commented May 8, 2023 at 17:58
  • Maybe it's a Windows installation problem - you could try to Do a Repair Install on booting from C. Note that the two M.2 slots are very different - see link and its advice.
    – harrymc
    Commented May 8, 2023 at 18:06
  • @harrymc I've tried repairing, but I'll try the in-place upgrade next. I know the limitations, and I'm fine losing a PCIE slot. I thought about trying to put the new drive in the faster slot, but I expected this way to be much easier.
    – Steve Cygan
    Commented May 8, 2023 at 18:56

1 Answer 1

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I don't know if this applies to your situation, but I often get Windows not recognizing the other NVMe drive. I solve that by going to disk management and putting the second drive online. Also, if both drives have a bootable installation on them, the one that boots will destroy the boot part of the second one. I have yet to discover how to prevent that.

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