Windows 10: 3tb drive works in win7, win 10 no. Solved

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  1.    16 Nov 2017 #1

    3tb drive works in win7, win 10 no.


    I have this drive working fine in win7 on the same PC.
    I formatted it as GPT, and win7 sees the entire 3tb space and is usable.
    I copied many gb of video files onto the drive.

    I boot win10 with this drive, it does not appear in file manager.
    disk management shows the drive. Right click on partitions, only option I see is help. cant do anything with them. all options greyed out.
    I do not want to loose any of my video files on there.
    appears fine in the bios.

    So what can I do?
    share link showing drives, forum wont accept pic
    https://photos.app.goo.gl/2DQe0WOhuxgfFV823
    Attached Thumbnails Attached Thumbnails drive trouble 3tb.PNG   20171116_083138.jpg  
      My ComputerSystem Spec

  2.    16 Nov 2017 #2

    You need to allocate it a drive letter.

    Note: Your Windows partitions are split between disk 0 and disk 2 - Your Recovery partition is not on your system disk.
    This can happen if, when you installed Windows, there wasn't space on your system disk. You should not have 'C:' occupying 100% of your system disk.

    (It looks as if you are using legacy BIOS, not EFI).
    (png's and jpg's at least are accepted as images - don't know about other types).
      My ComputerSystem Spec

  3.    16 Nov 2017 #3

    dalchina said: View Post
    You need to allocate it a drive letter.

    Note: Your Windows partitions are split between disk 0 and disk 2 - Your Recovery partition is not on your system disk.
    This can happen if, when you installed Windows, there wasn't space on your system disk. You should not have 'C:' occupying 100% of your system disk.

    (It looks as if you are using legacy BIOS, not EFI).
    (png's and jpg's at least are accepted as images - don't know about other types).
    i dont know what to do. how drive letter? right click all options greyed out. win10 is broken bug!

    the win10 was a fresh install on a 1tb empty drive. i unplugged all discs except 1tb disc and booted dvd and installed win10.
    the other disc is a sperate 1 tb drive with bootable win7 install.

    the 3rd disc is 3tb used for recorded tv
      My ComputerSystem Spec

  4.    16 Nov 2017 #4

    i shut down win10, i boot win7. 3tb working fine.
    can anyone make win10 work?

    proof is in screenshot

    this i think is a windows bug.
    Attached Thumbnails Attached Thumbnails 3tb win7 good.PNG  
      My ComputerSystem Spec

  5.    16 Nov 2017 #5

    Click image for larger version. 

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    - assign drive letter

    Click image for larger version. 

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ID:	164086

    Or use Minitool Partition Wizard e.g.
      My ComputerSystem Spec


  6. Posts : 137
    10 Pro 16299.248 64 Bit
       16 Nov 2017 #6

    yea you have no drive letter
      My ComputerSystem Spec

  7.    16 Nov 2017 #7

    can anyone make win10 work?
    yes -it works quite well for me and many others...
      My ComputerSystem Spec

  8. Caledon Ken's Avatar
    Posts : 10,687
    Windows 10 Pro x64 Build 1803
       16 Nov 2017 #8

    You will notice that the disk is listed as GPT Protective Partition.

    Read some google articles that came up when I searched this topic. Not a quick answer. I would place it back on Windows 7 device, copy data off and then re-initialize on Windows 10. Then copy data back on.

    Not a desired process. With the quick search I did I did not see quick answer. You can search more on this topic.

    Maybe this issue surrounds item Dalchina mentioned about BIOS in use?

    This does not answer why Windows is split between drives. Did you install Windows with both of your 1TB drives connected? At one point was this a dual boot system?


    Ken
      My ComputerSystem Spec

  9.    16 Nov 2017 #9

    Caledon Ken said: View Post
    You will notice that the disk is listed as GPT Protective Partition.

    Read some google articles that came up when I searched this topic. Not a quick answer. I would place it back on Windows 7 device, copy data off and then re-initialize on Windows 10. Then copy data back on.

    Not a desired process. With the quick search I did I did not see quick answer. You can search more on this topic.

    Maybe this issue surrounds item Dalchina mentioned about BIOS in use?

    This does not answer why Windows is split between drives. Did you install Windows with both of your 1TB drives connected? At one point was this a dual boot system?


    Ken
    you have a reasonable idea. HOWEVER, all drive options are greyed out, cant set drive letter, cant delete partiton in win10, so yes a win 10 bug. all will have to be done in win7. see the other guys dont believe this.

    copying 400gb. when done for PROOF, i can boot win10 and get screen shot of greyed out unselectable options to do anything to the disc. dont think they will believe regardless.

    all 3 drives are on same device, same mb.
      My ComputerSystem Spec

  10. ThrashZone's Avatar
    Posts : 3,882
    3-Win-7Prox64 2-Win10Prox64
       16 Nov 2017 #10

    Hi,
    Do you use any file or folder encryption software ?
    I've personally never seen a disk with protected labeled like that :/
      My ComputersSystem Spec


 
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