Disk Compression on W10/11

Discussion in 'Windows 11' started by Robotnik247, Jun 27, 2022.

  1. Robotnik247

    Robotnik247 MDL Junior Member

    Nov 21, 2012
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    #1 Robotnik247, Jun 27, 2022
    Does anyone happen to know what algorithm they're using? I would assume LZX but you never know since it's never stated anywhere because reasons.
     
  2. ALD76

    ALD76 MDL Novice

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    #2 ALD76, Jun 27, 2022
  3. Carlos Detweiller

    Carlos Detweiller Emperor of Ice-Cream

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    #3 Carlos Detweiller, Jun 27, 2022
    Old article.

    They support multiple algorithms in W10 and above: XPRESS4K, XPRESS8K, XPRESS16K, LZX. Only the first one (XPRESS4K) is available in previous OS.
     
  4. atgpud2003

    atgpud2003 MDL Addicted

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    #4 atgpud2003, Jun 28, 2022
    I wouldn't use disk compression.. Piece of crap and give more data errors easy..

    ATGPUD2003
     
  5. ALD76

    ALD76 MDL Novice

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    #5 ALD76, Jun 28, 2022
    I believe the multiple algorithms are only selectable for executable files.
     
  6. Carlos Detweiller

    Carlos Detweiller Emperor of Ice-Cream

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    #6 Carlos Detweiller, Jun 28, 2022
    OP didn't state what he referred to, exactly. AFAIK, the XPRESS4K is used for common transparent compression on-the-fly. I made the experience that compression only works with cluster sizes of 4KiB, change that and it becomes unavailable.
     
  7. AveYo

    AveYo MDL Expert

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    #7 AveYo, Jun 28, 2022
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  8. Tiger-1

    Tiger-1 MDL Guru

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    #8 Tiger-1, Jun 28, 2022
    hey can you share the source of this information thanks
     
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  9. Carlos Detweiller

    Carlos Detweiller Emperor of Ice-Cream

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    #9 Carlos Detweiller, Jun 28, 2022
  10. Robotnik247

    Robotnik247 MDL Junior Member

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    #10 Robotnik247, Jul 1, 2022
    Last edited: Jul 1, 2022
    (OP)
    I normally use CompactGUI but as I learned more about LZX I realized that the Disk Compression feature on W10/11 _must_ support LZX as well. Sadly compressing 1-2TB SSDs takes time not to mention if anything fails I'll have to redo everything not to mention shorten the SSDs lifespan by 1-2TB because said "feature" doesn't work as intended.

    Now obviously there isn't anything out there that auto-compresses files with LZX if they have been modified as of yet, but I assume Disk Compression at least does this or work in a similar manner since the entire drive always stays compressed.