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Windows Thread, 1 TB Disk Space full but files only add up to around 92 GB....What is using 900 GB??? in Technical; I am having some disk space issues with my wife's Lenovo ideapad. I have a 1TB drive with 917GB allocated ...
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    1 TB Disk Space full but files only add up to around 92 GB....What is using 900 GB???

    I am having some disk space issues with my wife's Lenovo ideapad. I have a 1TB drive with 917GB allocated to the c drive. According to my c drive properties i have used 897GB and only have 19 GB free. When i add up all the space from the individual folders/files in my C drive i only get 92 GB. Im assuming i have some really large file (possibly a back up or recovery image) somewhere that i cant seem to find. I have unhidden all files and run two different storage statistical programs (WinDirStat and DiskSpace Fan 4) but both programs only found 90-95 GBs worth of files. Anybody have any ideas on what hidden file could be taking up 800GB of my c drive? Any suggestions would be appreciated.

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    What filesystem? What is the size of the block/allocation unit? You could have an unusually large number of very small files which might say they take up a few bytes, but each one will need a whole block, regardless of how much data it takes.

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    NTFS and 512 bytes/sector

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    fairm010's Avatar
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    Install this and scan the drive. will show you visually your space hogs.

    http://www.jam-software.com/treesize_free/

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    fairm010's Avatar
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    Run as administrator though

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    What is the output from chkdsk. Sector size is not the same as allocation unit (cluster size).

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    Quote Originally Posted by BuffaloSoldier View Post
    Anybody have any ideas on what hidden file could be taking up 800GB of my c drive?
    Which version of Windows?

    Is System Restore enabled and how much space is that taking up?

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    It might be worth using ccleaner to see what it finds
    http://www.piriform.com/ccleaner

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    Quote Originally Posted by elsiegee40 View Post
    It might be worth using CCleaner to see what it finds
    +1. CCEnhancer might be worth installing too since it enables CCleaner to find even more.

  10. Thanks to Arthur from:

    Dos_Box (11th January 2014)

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    Are you using any kind of backup software to backup the drive as it may be leaving it's temporary files or snapshots behind and not removing them?

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