My C Drive is full but I can't see why

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  1. Posts : 7
    Windows 7 Ultimate x64
       #1

    My C Drive is full but I can't see why


    Hi,

    I have Windows 7 Ultimate x64 and it's installed on a 120Gb SSD along with all my software. I only install software and drivers on this drive. I also have 2x1Tb drives for storing everything else.

    The combined total of all the visible folders in the main directory of my C drive is 77Gb (including the Windows folder) but my system tells me that I have only 1.6Gb of free space. This is causing a lot of problems with Photoshop, AE etc.

    How can I find out what's occupying that missing 40-50Gb and how do I figure out what I can dump?

    Many thanks.

    S.
      My Computer


  2. Posts : 28,845
    Win 8 Release candidate 8400
       #2

    Seany said:
    Hi,

    I have Windows 7 Ultimate x64 and it's installed on a 120Gb SSD along with all my software. I only install software and drivers on this drive. I also have 2x1Tb drives for storing everything else.

    The combined total of all the visible folders in the main directory of my C drive is 77Gb (including the Windows folder) but my system tells me that I have only 1.6Gb of free space. This is causing a lot of problems with Photoshop, AE etc.

    How can I find out what's occupying that missing 40-50Gb and how do I figure out what I can dump?

    Many thanks.

    S.

    Third party tool like Jam software's Treesize pro (free to try) will do the trick.
      My Computer


  3. Posts : 7,055
    Windows 7 Home Premium 32 bit
       #3

    DiskAnalyser Pro - hard disk space usage analysis software - is another good one you may try. Download DiskAnalyzer Pro Software - 14 Days Free Trial
      My Computer


  4. Posts : 10,455
    Microsoft Windows 7 Home Premium 64-bit Service Pack 1
       #4

    Windirstat is also a good tool. WinDirStat - Windows Directory Statistics
      My Computer


  5. scr
    Posts : 366
    1. Windows 7 Home Premium sp1 - 64bit 2. Windows 7 Pro sp1 - 64bit
       #5
      My Computer


  6. Posts : 1,363
    Win7 pro x64
       #6
      My Computer


  7. Posts : 71,959
    64-bit Windows 11 Pro for Workstations
       #7

    Hello Seany, and welcome to Seven Forums.

    Here's one more thing to check that may be able to help.

    Hard Disk Space - Free Up and Recover

    Hope this helps,
    Shawn
      My Computer


  8. Posts : 7
    Windows 7 Ultimate x64
    Thread Starter
       #8

    Hi,

    Many thanks for all your help.

    I used SpaceSniffer as well as downloading some of the other software recommended. SpaceSniffer identified two imense files on my drive that seem to be related to the system.

    'pagefile.sys' = 23.9Gb
    'hiberfil.sys' = 17.9Gb

    One of these files was created about a year ago and the other about a month ago.

    I have no idea what they are or whether it's safe to delete them. I'm going to google it, but does anyone know what these files do... and if I can't delete them is there a way to reduce their size?

    Thanks again.

    S.
      My Computer


  9. Posts : 10,455
    Microsoft Windows 7 Home Premium 64-bit Service Pack 1
       #9

    Pagefile.sys is the system paging file. The size is normally managed by Windows although you can manage it yourself. The recommended size is 1.5 x installed RAM so unless you have 16GB RAM it is rather large. Hiberfil.sys is where the computer saves its state when it enters hibernation. I don't know what controls the size.
      My Computer


  10. Posts : 7
    Windows 7 Ultimate x64
    Thread Starter
       #10

    Thanks for that.

    I actually have 24Gb's RAM so that explains the size of the pagefile.sys file. not sure about the other.

    Do you know what the adverse affects might be if I reduce the size of the pagefile.sys file?

    Thanks again.

    S.
      My Computer


 
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