Windows 10: Win10. Seagate HDD not seen by Win10.

  1.    18 Mar 2018 #1

    Win10. Seagate HDD not seen by Win10.

    I have this Seagate SATA HDD that win10 doesn't see. Not anywhere. Device manager, disk management, nowhere.

    But run Seatools on the computer and it sees it okay and gives it a clean bill of health.

    Except it doesn't list it as 'ready to test' like it does all the other drives.

    I know it is a good drive because I can move it to another win10 computer and it shows up and works fine.

    What can I do?
    Last edited by abrogard; 20 Mar 2018 at 15:14.
      My ComputerSystem Spec

  2. Caledon Ken's Avatar
    Posts : 10,553
    Windows 10 Pro x64 Build 1803
       19 Mar 2018 #2

    This wouldn't be a boot drive out of the other Windows 10 computer (The Win 10 computer that can see the drive.)

    If it is please put it back into the Win 10 computer that can see it. Boot, hold the shift key and click shutdown. Then move it and see if you can see it.
      My ComputerSystem Spec

  3.    19 Mar 2018 #3

    No, it is not. It was a data drive on this computer and clearly visible. When it went missing I thought it must have died and took it to another computer to check - found it was clearly alive.

    What is a shutdown with the shift key pressed?

    I'm in correspondence with ASUS and I'm going to update the BIOS - just a glitch right now where I don't find in BIOS what they're telling me to find.

    But I can't see how that'd really be the problem, given it was visible. Unless BIOS allows for SATA ports to come and go of their own accord.
      My ComputerSystem Spec

  4. Caledon Ken's Avatar
    Posts : 10,553
    Windows 10 Pro x64 Build 1803
       20 Mar 2018 #4

    Shift and shutdown does a complete shutdown.

    Depending on board some sata ports don't work if you have m.2 drive. Please check documentation.
      My ComputerSystem Spec

  5.    20 Mar 2018 #5

    The board is an ASUS H170 Pro Gamer.

    The Seagate HDD is not an M.2 device, I think. It used to work on this machine. For quite some time.
      My ComputerSystem Spec

  6. Caledon Ken's Avatar
    Posts : 10,553
    Windows 10 Pro x64 Build 1803
       20 Mar 2018 #6

    Thanks for board number.

    Wasn't saying your HDD was an M.2. Was saying if you have an M.2 then in some Asus boards certain Sata ports are disabled.

    I assume you tried a different port and cable.
      My ComputerSystem Spec

  7.    20 Mar 2018 #7

    Yep. Shouldn't have posted the question without putting details of board and whatever I guess. Ah well.

    Yes, I've tried different cables and different ports. I've been corresponding with ASUS and I'm going to update the BIOS today, I hope. That might help. Mine is version 0703, their latest is something like 3000. Been a lot of updates.

      My ComputerSystem Spec

  8.    20 Mar 2018 #8

    Hey abrogard,
    Probably a long shot, but when you checked Device Manager did you Show Hidden Devices (View > Show Hidden Devices) to see if that might shed some light on on your missing drive?
      My ComputersSystem Spec

  9.    20 Mar 2018 #9

    Good thought but I'd already tried that one. Didn't work. Too bad
      My ComputerSystem Spec


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