Trim, SSD and Windows 7 - not necessary?


  1. Posts : 259
    Windows 7 Panasonic CF F9 (used to have CF F8)
       #1

    Trim, SSD and Windows 7 - not necessary?


    "TRIM was introduced soon after SSDs started to become an affordable alternative for traditional hard disks as permanent storage in PCs."

    According to wikiepdia -

    Do you need to add TRIM when installing a fresh SSD and Windows 7?

    Thanks
      My Computer


  2. Posts : 6,349
    Windows7 Pro 64bit SP-1; Windows XP Pro 32bit
       #2

    No.

    Windows 7 will automatically turn TRIM on if the SSD is TRIM capable.

    Last paragraph.
    "Operating system and SSD support"
    http://en.wikipedia.org/wiki/TRIM

    There is also a way to check and make sure it is on. I'll see if I can find that for you.
    I can't seem to find it right now.

    Mike
      My Computer


  3. Posts : 259
    Windows 7 Panasonic CF F9 (used to have CF F8)
    Thread Starter
       #3

    Thanks -
      My Computer


  4. Posts : 5,056
    Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
       #4

    Looks like Hopalong cant find it so here it is.

    Run Command Prompt as Administrator and change directory to C:\Windows\system32, then type:

    fsutil behavior query disabledeletenotify

    The result will be one of the following:-

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


  5. Posts : 1,965
    win 7 X64 Ultimate SP1
       #5

    Trim


    Open an elevated Command Prompt (run as admin) and paste this command into the Command Prompt window:

    fsutil behavior query DisableDeleteNotify

    If Command Prompt returns a 0 (zero), your drive supports TRIM and it is enabled.
    If it returns 1 (one), the file system has disabled TRIM for your drive. This means your drive's controller does not support TRIM.

    From an earlier post by WHS

    Way too late, everyone beat me too it.
    Last edited by HammerHead; 23 Nov 2010 at 08:59. Reason: Oopsie
      My Computer


  6. Posts : 6,349
    Windows7 Pro 64bit SP-1; Windows XP Pro 32bit
       #6

    lister

    I knew someone would find it for you.

    Mike
      My Computer


  7. Posts : 259
    Windows 7 Panasonic CF F9 (used to have CF F8)
    Thread Starter
       #7

    as usual amazing support thanks guys.

    In fact I do have TRIM and it is enabled using the above advice.

    I am shortly going to install/replace the drive with an SSD drive - I guess this TRIM will activate itself again?
      My Computer


  8. Posts : 12,364
    8 Pro x64
       #8

    Yep
      My Computer


  9. Posts : 7
    Windows 7 Home Premium
       #9

    Correct me if I'm wrong, but doesn't the DisableDeleteNotify command only reveal that the OS is sending the TRIM command, not necessarily that the SSD is TRIM capable and receiving the command?
      My Computer


  10. Posts : 6,349
    Windows7 Pro 64bit SP-1; Windows XP Pro 32bit
       #10

    Yukon

    I beleive you are right.
    Capability will be listed by manufacturer and buyer should find out ahead of time if it is a feature they want.

    Mike
      My Computer


 

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