Cannot Trim SSD's after Windows 10 Anniversary Update

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  1. Posts : 213
    Windows 10
       #1

    Cannot Trim SSD's after Windows 10 Anniversary Update


    After update to Windows 10 Anniversary Update I cannot Trim SSD's.

    SSD's not recognised. I tried running "winsat formal" from an elevated (admin) command with no success.

    Any suggestions?
      My Computer

  2. CountMike's Avatar
    Posts : 18,326
    W10+Developer Insider + Linux
       #2

    Did you try thru Disk properties > Tools > Optimize ?
    Is SSD recognized as such ?
    Is Trim enabled (AHCI mode too) ?
      My Computers

  3. essenbe's Avatar
    Posts : 12,507
    Windows 10 Pro 1903
       #3

    If you will open an elevated command prompt ( Right click the start flag and select Command Prompt (Admin) and run this command

    fsutil behavior query disabledeletenotify and press enter. It will tell you whether trim is enabled.

    DisableDeleteNotify = 1 (Windows TRIM commands are disabled)
    DisableDeleteNotify = 0 (Windows TRIM commands are enabled)

    That would tell you if Windows 10 is sending trim commands to the SSD Controller.
      My Computers


  4. Posts : 213
    Windows 10
    Thread Starter
       #4

    I have done fsutil behavior query disabledeletenotify and get result :-

    NTFS DisableDeleteNotify = 0
    ReFS DisableDeleteNotify = 0

    Any help how to solve issue.

    I had no issue with before upgrade to Windows 10 Anniversary Update.

    Thank you.
      My Computer

  5. CountMike's Avatar
    Posts : 18,326
    W10+Developer Insider + Linux
       #5

    So, the trim is on, did you try what I suggested ?
      My Computers


  6. Posts : 213
    Windows 10
    Thread Starter
       #6

    Cannot Trim SSD's after Windows 10 Anniversary Update-optimise.jpg

    Please see attached image.

    Trim is enable.

    All help appreciated.

    Thank you.
      My Computer

  7. CountMike's Avatar
    Posts : 18,326
    W10+Developer Insider + Linux
       #7

    Can you turn on auto optimization ? Looks like Optimize button is grayed out and optimization turned off.
      My Computers

  8. essenbe's Avatar
    Posts : 12,507
    Windows 10 Pro 1903
       #8

    Isn't that the disk defragmenter? You should never defragment an SSD. That's why Windows automatically turns it off.
      My Computers

  9. CountMike's Avatar
    Posts : 18,326
    W10+Developer Insider + Linux
       #9

    essenbe said:
    Isn't that the disk defragmenter? You should never defragment an SSD. That's why Windows automatically turns it off.
    It is and isn't, HDDs get defragged and SSDs trimmed. If you click at Optimize it trims SSD and defrags HDDs. That's how it is since w7 Sp1.
      My Computers

  10. OldMike65's Avatar
    Posts : 106,245
    Windows10 Pro (x64) 20H2 19042.870
       #10

    CountMike said:
    It is and isn't, HDDs get defragged and SSDs trimmed. If you click at Optimize it trims SSD and defrags HDDs. That's how it is since w7 Sp1.
    Yup Mike is correct
      My Computers


 
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