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What is the partition after my primary partition?

  1. #1


    Posts : 7
    Windows 8

    What is the partition after my primary partition?


    I have a Gateway computer that came with Window 8 preinstalled. I removed their recovery partition after making recovery disks.

    There are 5 partitions left on Disk 0. I know what the first 4 partitions are for, but not sure what the 5th one is for. When looking in Windows Disk Management, it has a blank name. Does anyone know?

    Here is a screen shot from DISKPART.

    Click image for larger version

    Thanks so much.

      My System SpecsSystem Spec

  2. #2


    San Jose - California
    Posts : 2,847
    8.1x64PWMC Ubuntu14.04x64 MintMate17x64


    I know this 350MB hidden partition is a reserved partition. Can you post a screen shot of your layout in the disk management ?
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  3. #3


    Posts : 7
    Windows 8


    Thanks for your quick response.

    As you probably know, the 128MB partition doesn't show in Disk Management because it's a hidden partition.

    Here is the snapshot from Disk Management:

    Click image for larger version

    Thanks!
    Jerry
    Attached Thumbnails Attached Thumbnails Disk Management.JPG  
      My System SpecsSystem Spec

  4. #4


    San Jose - California
    Posts : 2,847
    8.1x64PWMC Ubuntu14.04x64 MintMate17x64


    It's true the 128MB partition will not show up in disk management, it is hidden, unallocated and reserved by Microsoft.
    When installing Windows using EFI mode, you'll get a total of 4 partitions created.
    When installing Windows using the Legacy MBR, you'll get 2 partitions created ie. a 350MB hidden partition (no letter assigned) and the Windows OS C: partition.

    By looking at the disk management screen, you only have Windows 8 running with EFI mode. So I guess at one point in the past, you did install Windows using the Legacy MBR. This partition is currently unused and you can delete it if you wish.

    @Jerry: To be cautious, before you wish to delete this extra partition, Make a backup of this partition only (350MB).
    Last edited by topgundcp; 28 Jun 2014 at 18:18.
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  5. #5


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    topgundcp, actually all of them have to stay. Windows 8.1 creates the extra partition. If you remove the extra one. Windows will not work.
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  6. #6


    Posts : 1,121
    Windows 8.1 x64


    The 350 MB partition is the one an 8 to 8.1 update adds. It is nomally designated as a Recovery partition.

    Have you changed it, or reset back to Windows 8 then updated again?

    Running the reagentc /info command in an Administrative Command Prompt might tell us if your recovery process is still operational and where it is looking for the Recovery Tools.
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  7. #7


    Posts : 7
    Windows 8


    I've enabled Legacy boot in BIOS months ago.

    I haven't gone back to 8 from 8.1. When I received my Gateway, Windows 8 came preinstalled and have been getting the usual updates from Microsoft, which included 8.1 at some point.

    Here is a screenshot of the results of reagentc /info:

    Click image for larger version

    Thanks!
      My System SpecsSystem Spec

  8. #8


    San Jose - California
    Posts : 2,847
    8.1x64PWMC Ubuntu14.04x64 MintMate17x64


    @Salgrass: You are correct that Windows upgrade from 8 -> 8.1 will create an extra partition to roll back if anything goes wrong. I have never done upgrade from 8 -> 8.1 and run into this situation. However, according to this thread:
    Can't delete extra "Healthy (Recovery Partition)"s and "Healthy (EFI System Partition)"
    You can delete this extra Recovery partition
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  9. #9


    Posts : 1,121
    Windows 8.1 x64


    @topguncp--we need to find out which partition is the active Recovery Tools Partition. This is a UEFI install, so Legacy should have nothing to do with it. Any install that has an EFI partition is configured as GPT, and cannot be a Legacy install.

    @ Jerryferreira, as you can see, the Recovery Options are disabled. You might try running the reagentc /enable command and then the reagentc /info command again.

    The 350 MB partition is showing a configuration that was not done by Windows, at least as far as I know... It should show as hidden and designated as Recovery just as the first one. Since this one takes the place of the first one, it should not be removed until we know for sure which one has been set by Windows for your recovery options.
      My System SpecsSystem Spec

  10. #10


    Posts : 7
    Windows 8


    Thanks to all for your help. I really do appreciate it.

    Saltgrass---I ran reagentc /enable and this is what I got:

    Click image for larger version

    Thanks.
      My System SpecsSystem Spec

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What is the partition after my primary partition?
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