Decompress a NTFS volume

Discussion in 'Windows Desktop Systems' started by dreamliner77, Feb 12, 2007.

  1. dreamliner77

    dreamliner77 The Analog Kid

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    Stupid question, but how can I decompress a NTFS volume. Our sys admin decided it would be a good idea to "compress drive to save disk space."
     
  2. fitz

    fitz Just Floating Along Staff Member Political User Folding Team

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    assuming you are just talking about the built-in ntfs compression.. you can right click on the drive, select properties. There should be a check box for "Compress drive to save disk space"

    Uncheck and apply.. and, depending on how big the drive is, wait for it to hit every file.

    Make sure you have enough free space to hold the uncompressed files..
     
  3. LeeJend

    LeeJend Moderator

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    LMAO. Fire the guy. 95% of the data on a PC is already compressed. Double compression gains almost nothing.
     
  4. fitz

    fitz Just Floating Along Staff Member Political User Folding Team

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    Not true at all. Especially on a file server where a lot of documents in Word/Excel format and text files can be compressed by a good 70-80%..
     
  5. dreamliner77

    dreamliner77 The Analog Kid

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    I'm talking ALL files on about 150 desktops and laptops. I can tell you that it makes MS Mappoint take about a minute to open.
     
  6. vertigo

    vertigo OSNN Senior Addict

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    lol was it his first day on the job? i agree, fire him! :D
     
  7. fitz

    fitz Just Floating Along Staff Member Political User Folding Team

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    what's a sysadmin doing messing with the desktops and laptops? Generally does not fall under a pure sys admin's role of responsibilities.

    In any case, there are cases where compression can actually speed up application/file opens. In particular, files can sometime be accessed quicker if it a file that lends itself to compression (ie: test files and the like that obtain high compression ratios). It can be quicker because of the need for less disk activity to read the file (smaller size on the disk).

    However, it is generally not advisable to compress a whole drive.. :eek:
     
  8. dreamliner77

    dreamliner77 The Analog Kid

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    Doesn't work.
     
  9. fitz

    fitz Just Floating Along Staff Member Political User Folding Team

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    care to elaborate?
     
  10. dreamliner77

    dreamliner77 The Analog Kid

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    I doesn't decompress anything. I still have half the files on my drive compressed.
     
  11. fitz

    fitz Just Floating Along Staff Member Political User Folding Team

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    do you have access/ownership of said files?
     
  12. Ron Bennett

    Ron Bennett OSNN One Post Wonder

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    Looks like files are locked. Try to boot in WinPE Live CD or something and re-apply clearing the compression streams from files. But sorry can't dig in it. If your admin decided to save space why do you want to decompress data? In fact NTFS compression worth having it even on already compressed data such as 7-zip archives. Try to compress something with archiver, make a copy of created archive and apply NTFS compression to it. Notice that in most cases data would fit cluster size resulting in no excess of unfilled clusters.
     
    Last edited: Feb 14, 2007
  13. dreamliner77

    dreamliner77 The Analog Kid

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    Mostly want it gone because access time to some files is slow. Plus it compressed my music collection (mpc). It's a laptop with a P-M so on battery, processor usage is an issue.