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hard drive full BUT i should still have 5 gigs of space

Discussion in 'Hardware' started by jeffmontreal, Jan 17, 2007.

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  1. jeffmontreal

    jeffmontreal Thread Starter

    Joined:
    Jan 17, 2007
    Messages:
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    Hi and thanks in advance for any help
    I am getting a message that my hard drive is full, when i click on properties for the C drive it confirms that i am using 29.5 GB of my 30 GB hard drive. BUT when i add up the sizes of all the files on the C drive (including hidden files), it only comes to 25 GB.
    Any ideas on why I can't find that missing 5 GB?

    Thanks.
     
  2. valis

    valis Moderator

    Joined:
    Sep 24, 2004
    Messages:
    77,777
    try this:

    Please download ATF Cleaner by Atribune.
    This program is for XP and Windows 2000 only

    • Double-click ATF-Cleaner.exe to run the program.
      Under Main choose: Select All
      Click the Empty Selected button.
    If you use Firefox browser
    • Click Firefox at the top and choose: Select All
      Click the Empty Selected button.
      NOTE: If you would like to keep your saved passwords, please click No at the prompt.
    If you use Opera browser
    • Click Opera at the top and choose: Select All
      Click the Empty Selected button.
      NOTE: If you would like to keep your saved passwords, please click No at the prompt.
    Click Exit on the Main menu to close the program.
    For Technical Support, double-click the e-mail address located at the bottom of each menu.


    be sure to note how much it frees up, and post that back here if you could.
     
  3. schusterjo

    schusterjo

    Joined:
    Nov 11, 2006
    Messages:
    1,182
    A lot you do not see such as virtual memory ext.. This is an area on the hard drive the OS will reserve to run its processes.
     
  4. cwwozniak

    cwwozniak Trusted Advisor Spam Fighter

    Joined:
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    First Name:
    Chuck
    You also need to look at how much space each file uses on the hard disk, not just the size of the file itself. Assuming you are using an NTFS file system, I believe your 29.5 GB drive uses 32 Kilobyte cluster sizes. Storage space for a given file is allocated in 32 KB increments. That means that a 2 KB file and a 20 KB file would each use up a 32 KB block of drive space. A 33 KB file would use up 64 KB.

    EDIT: BTW, Welcome to TSG.

    CORRECTION: In looking over an NTFS file cluster chart, I overlooked a note that the chart was for two different versions of NTFS. I was quoting numbers for the version in Windows NT 3.5 and Earlier instead of the version in Windows NT 3.51 and Later (Including Windows 2000). The later version has cluster size of 4 KB for any drive over 2 GB.
     
  5. jackdw

    jackdw

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    So thats why properties of files and folders have size and size on disk?
     
  6. valis

    valis Moderator

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    yup.
     
  7. jeffmontreal

    jeffmontreal Thread Starter

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    Messages:
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    Hi everyone, thanks for the info; I will try the atf program as well, and post any results. guess i will have to get rid of some stuff on the drive.

    Jeff
     
  8. jeffmontreal

    jeffmontreal Thread Starter

    Joined:
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    Messages:
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    hi again - atf tells me it has freed up 2 million bytes or so..i had run the windows disk cleanup thing a ma bob recently, so maybe there wasn't much left to clean up...thanks again

    jeff
     
  9. angelmat

    angelmat

    Joined:
    Jul 19, 2007
    Messages:
    6
    Thanks .... it freed 933.367 Mb for me .... I was looking at 19.07 total available of a physical 20GB drive, of which select all files > properties showed 14.6GB in use (actual), but explorer showed 16.8GB in use ... I'd already purged all the caches, cookies, and temp internet files I could find for both IE and Firefox, so who knows what it found. Glad I looked here, though, that extra gig free is enough to finally defrag. :p
     
  10. Nastrodamus

    Nastrodamus

    Joined:
    Jul 2, 2007
    Messages:
    129
    If you have Win XP, check and make sure your system restore points are not holding all of that space.
     
  11. Elvandil

    Elvandil

    Joined:
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    Messages:
    51,988
    It's just plain time to get a bigger drive, or add another one.
     
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