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Windows 7: I've got 381GB of 'unknown' data on my pc

19 Dec 2013   #1

64 bit windows 7
I've got 381GB of 'unknown' data on my pc

i looked at my C: folder and all of of memory (except about 19GB) is being used. but that is impossible. its a new'ish pc only about 2 years old. the harddrive is 500gb and 481gb is being used up. i used a program called WinDirStat, and it showed i had 381gb of unknown data. has anyone else ever had this problem? how can i delete this unknown data?

My System SpecsSystem Spec
19 Dec 2013   #2
Microsoft MVP

Windows 7 Ultimate 32bit SP1

Download DDS from one of these links:
  • Disable any script blocking protection
  • Double click the dds icon to run the tool.
  • When done, DDS will open two (2) logs:
    1. DDS.txt
    2. Attach.txt <--- will be minimized in the task tray
  • Save both reports to your desktop.
Include the contents of both logs in your next post.
The scan will instruct you to post Attach.txt as an attachment.
My System SpecsSystem Spec

 I've got 381GB of 'unknown' data on my pc

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