Windows 8 and 8.1 Forums


19 GB unallocated partition

  1. #1


    Posts : 6
    Windows 8 Pro

    19 GB unallocated partition


    Hi all,

    I just looked at the disk manager, and I see this:

    Click image for larger version

    I am not sure what those 19 gb are.. and is there a way to get them back ? If I right click on it only gives me an option to delete..
    Last edited by Brink; 22 Feb 2013 at 23:25. Reason: embedded image

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  2. #2


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


    I's not unallocated, It's just hidden. You can assign a Drive letter to it and you can use it. As you said it's only give you the option to delete then you might have to use diskpart from elevated command to assign a drive letter for it. However, I also notice that you installed Windows without the 350MB reserved partition and it's OK, some people like it that way & as long as you don't use Bitlocker.

    Drive Letter - Add, Change, or Remove in Windows 7 - Windows 7 Support Forums
    Last edited by topgundcp; 23 Feb 2013 at 01:53.
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  3. #3


    Posts : 6
    Windows 8 Pro


    ^ thank you! I upgraded from 7, and then couple of drivers were acting up so I did a "refresh", so it never asked if I want the reserved 350mb partition or not.. but I don't plan on using bitlocker so its okay I guess.

    I don't see the 19gb partition in the command prompt for some reason..



    Also, I just got rid of mine Windows.old folder thanks to this:

    Windows.old Folder - Delete in Windows 8

    But while I was doing that I noticed that there are 6 gb of "temporary Windows installation files" and I was wondering if those are safe to delete as well ? I know that I can't touch the ESD ones since those are used for "refresh, etc"..
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  4. #4


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


    You can use the link below for reference how to use diskpart to assign a drive letter
    DiskPart - Partition a disk | SS64.com

    cheers !!!

    EDIT: In diskpart use:
    from your screen, you need:
    select disk 0
    list partition
    select partition # where # is the partition for 19GB
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  5. #5


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


    But while I was doing that I noticed that there are 6 gb of "temporary Windows installation files" and I was wondering if those are safe to delete as well ? I know that I can't touch the ESD ones since those are used for "refresh, etc"..
    Use: Win+X ->Run then type: cleanmgr ->OK->Clean up System Files then tick on all of them except set up log files ->OK
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  6. #6


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


    Maybe Forum admin edited this post but as you said you did not have the option to change drive letter from Disk Management therefore you have to use diskpart.
    Last edited by topgundcp; 23 Feb 2013 at 01:57.
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  7. #7


    Posts : 6
    Windows 8 Pro


    Quote Originally Posted by topgundcp View Post
    You can use the link below for reference how to use diskpart to assign a drive letter
    DiskPart - Partition a disk | SS64.com

    cheers !!!

    EDIT: In diskpart use:
    from your screen, you need:
    select disk 0
    list partition
    select partition # where # is the partition for 19GB
    Got to it, but I think I am missing a command... it won't let me assign a letter to it. I am guessing I have to convert that partition into a volume first ?

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  8. #8


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


    Active
    Assign =====> this will assign next available letter

    Cheers !!!
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  9. #9


    Posts : 5,592
    ME, XP,Vista,Win7,Win8,Win8.1


    Quote Originally Posted by topgundcp View Post
    Active
    Assign =====> this will assign next available letter

    Cheers !!!
    If you mark the OEM Recovery Partition ACTIVE, the OEM Recovery will boot not Windows 8.

    Quote Originally Posted by deadhead
    I am not sure what those 19 gb are.. and is there a way to get them back ? If I right click on it only gives me an option to delete..
    Partition or Volume - Delete - Windows 7 Support Forums
    Partition or Volume - Create New - Windows 7 Support Forums
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  10. #10


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


    If you mark the OEM Recovery Partition ACTIVE, the OEM Recovery will boot not Windows 8.
    My bad and Thanks for pointing it out, I didn't think it was a recovery partition. Usually the recovery partition is located after the Windows OS partition. In that case OP needs to delete the partition then re-create it.
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19 GB unallocated partition
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