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charlie88's avatar
charlie88
Copper Contributor
Jun 07, 2019
Solved

Win 10 Disk Mgmt not allowing me to assigning a drive letter - drive is there but options greyed out

Hello all,       I am hooking up an external, healthy 1TB WIn 10 hard drive to a brand new HP all in one PC using an USB toaster-style adapter bridge, and new PC is also WIn 10.  Disk Mgmt "Sees" th...
  • Maluks's avatar
    Jun 10, 2019

    charlie88GPT protected partitions cannot be managed via disk management in Computer management. You could try to remove GPT protection using diskpart or other 3rd party disk management tools.
    Note: actions below will clean all the data inside HDD, so if you need data inside, make sure that you have a backup first.
    Diskpart is part of windows, so to launch it you only need to run CMD, type diskpart. You will enter application and in the application type:
    List disk (this will display all the HDD's attached)
    Select disk # (replace # with the number of the disk you want to work with)
    Clean (this will remove GPT from the disk)

    Continue disk configuration via Computer Management (if you have window open, refresh the view) as you are probably mostly familiar with.

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