Windows 10: Cannot Format HD Solved


  1. Posts : 10
    Windows 10 64-bit
       04 Dec 2015 #1

    Cannot Format HD


    I have a 4TB HD that was previously formatted that I've put into an external hd bay. When I go into Computer Management/Disk Management the hd is not listed in the top section and in the bottom section it is split into 2048 GB and 1678 GB, both "Unallocated". I want to reformat the hd into one partition but the only available option when I right click the larger partition is "New Simple Volume" and for the smaller partition there are no options available at all. Nowhere does it give me the choice to delete everything or just reformat the entire drive.
      My ComputerSystem Spec


  2. Posts : 2,036
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       04 Dec 2015 #2

    Need to initialize it as GPT disk type with HD > 2TB:
    From Admin command prompt:
    1. diskpart
    2. list disk =====> Take a note of disk # for the 4TB HD
    3. select disk # ====> From step 2
    4. clean
    5. exit

    Open Disk Management and initialize the disk as GPT, create simple then format.
    Last edited by topgundcp; 05 Dec 2015 at 05:42.
      My ComputerSystem Spec


  3. Posts : 10
    Windows 10 64-bit
    Thread Starter
       04 Dec 2015 #3

    Got it. Thank ye!
      My ComputerSystem Spec


 

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