Why does Partition Wizard show a GPT (Reserved Partition) ?


  1. Posts : 6,330
    Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64 +Linux_VMs +Chromium_VM
       #1

    Why does Partition Wizard show a GPT (Reserved Partition) ?


    I just got my first 3TB (> 2TB) HD.
    I initialized it as a GPT Disk in Windows Disk Management (DM).
    I created the partition in MiniTool Partition Wizard (PW).
    Seeing a difference in DM and PW,
    I cleaned the disk and then re-initialized and created the partition in DM.

    If the partition is created in DM or PW, I get the same results.
    See screen prints below.

    PW it shows a 128 MB "GPT (Reserved Partition)".
    DM does not show this partition.
    Is that normal/expected ?
    Why does PW show a partition that DM doesn't see ?
    I'm wondering if this is a potential issue and I should re-initialize this HD as MBR ???


    I'd like to have 1 partition if it's reliable, but 2 smaller partitions is not a problem for me.
    I don't want to run into some "Gotcha" years later where I lose everything ...
    There is no data on this HD that matters, I can recover anything on every device ...
    This HD will be used for "Offline Backup", and not normally "Online/Connected".

    Disk Management screen print:
    Why does Partition Wizard show a GPT (Reserved Partition) ?-init_3tb_disk_sp3.png

    Partition Wizard screen print:
    Why does Partition Wizard show a GPT (Reserved Partition) ?-init_3tb_disk_sp4.png

    tyia, David
      My Computer


  2. Posts : 7,055
    Windows 7 Home Premium 32 bit
       #2

    DavidE said:
    ........PW it shows a 128 MB "GPT (Reserved Partition)".
    DM does not show this partition.
    Is that normal/expected ?
    Why does PW show a partition that DM doesn't see ?
    I'm wondering if this is a potential issue and I should re-initialize this HD as MBR ???........
    That is normal and expected .

    Microsoft Reserved Partition - Wikipedia, the free encyclopedia

    partitioning - Are GPT reserved and EFI system partitions important? - Super User

    Windows and GPT FAQ (Windows Drivers)

    If you initialise a >2TB disk as an MBR disk, you can only access the first 2TB of that drive. You can as well by a 2TB drive. :)
      My Computer


  3. Posts : 6,330
    Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64 +Linux_VMs +Chromium_VM
    Thread Starter
       #3

    Thank You jumanji !
    Solved, +1
    :)
      My Computer


 

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