Windows 8 and 8.1 Forums


Unable to use full SSD space

  1. #1


    Posts : 3
    Windows 8

    Unable to use full SSD space


    Hi, I have a 256gb ssd installed on my laptop and I recently had installed Ubuntu partition on it and ended up removing it. I have instead reinstalled a fresh copy of Windows 8. However I see no other partition during the installation processing and it's saying I only have 238gb available not my disk's full 256gb. So far I tried chkdsk and disk management and it failed to see any other used space. Thank you in advance for your help.

      My System SpecsSystem Spec

  2. #2


    That would be correct, just checked mine. What your seeing is a difference in how data is measured. I remember my first 1 GB hard drive same thing only 950 MB or what ever. Goggle it if you need an exact technical explanation.
      My System SpecsSystem Spec

  3. #3


    Posts : 2,130
    Windows 8.0 x64


    You didn't lose anything. When sizing drives marketing calls 1000 * 1000 * 1000 a GB. But it's really 1024 * 1024 * 1024.

    If you multiply 256 times the GB made from 1000 cubed and divide it by 1024 cubed, you get 238.
      My System SpecsSystem Spec

  4. #4


    Posts : 3
    Windows 8


    Is there a reason for the unaccounted for 18gb of space? Because during the Ubuntu installation I allocated 19gb to Ubuntu. Also, let me clarify, it says 238gb without any windows installation on it. It was freshly formatted. I believe the Ubuntu partion is there on there I just cant seem to see it.

    Edit: Also only other thing using the ssd is a recovery partition which is 350MB
      My System SpecsSystem Spec

  5. #5


    Click image for larger version
    Quote Originally Posted by arjunk View Post
    Is there a reason for the unaccounted for 18gb of space? Because during the Ubuntu installation I allocated 19gb to Ubuntu. Also, let me clarify, it says 238gb without any windows installation on it. It was freshly formatted. I believe the Ubuntu partion is there on there I just cant seem to see it.

    Edit: Also only other thing using the ssd is a recovery partition which is 350MB
    Click image for larger version
    Last edited by Clintlgm; 23 Feb 2014 at 18:22.
      My System SpecsSystem Spec

  6. #6


    Posts : 2,130
    Windows 8.0 x64


    Quote Originally Posted by arjunk View Post
    Is there a reason for the unaccounted for 18gb of space? Because during the Ubuntu installation I allocated 19gb to Ubuntu. Also, let me clarify, it says 238gb without any windows installation on it. It was freshly formatted. I believe the Ubuntu partion is there on there I just cant seem to see it.

    Edit: Also only other thing using the ssd is a recovery partition which is 350MB
    I guess I didn't drive the point home. Maybe this link will help:
    http://blog.ericlamb.net/2011/02/tru...ace-marketing/
      My System SpecsSystem Spec

  7. #7


    Posts : 3
    Windows 8


    Oh ok, it makes sense now. I looked further into it. Thank you guys
      My System SpecsSystem Spec

  8. #8


    Posts : 2,130
    Windows 8.0 x64


    Quote Originally Posted by arjunk View Post
    Oh ok, it makes sense now. I looked further into it. Thank you guys
    The coincidence that you gave Ubuntu about that much space threw you I think. I wish they'd call a GB a GB and avoid confusion though.
      My System SpecsSystem Spec

  9. #9


    Adelaide
    Posts : 1,338
    Windows 7 Ultimate SP1 (64 bit), Linux Mint 17.1 MATE (64 bit)


    The Linux distros I've tried use "GiB", instead of "GB", to differentiate between the different size measurements (computer vs marketing).
      My System SpecsSystem Spec

  10. #10


    SSDs are actually larger than advertised up to 20% but you can't see that, it's reserved for internal use of the disk (load leveling etc.)
      My System SpecsSystem Spec

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