Service Host: Disk Defragmenter taking up huge amounts of CPU 24/7

  1.    29 Dec 2016 #1

    Service Host: Disk Defragmenter taking up huge amounts of CPU 24/7

    Seriously, it's starting to concern me how it's permanently taking up this much of my CPU...

    Here's a link showing how much of the CPU it's taking up, it's been like this for days now.
      My ComputerSystem Spec

  2.    30 Dec 2016 #2

    Exact same problem... If you figure out the solution, please post!
      My ComputerSystem Spec

  3.    30 Dec 2016 #3

    Hi guys welcome to the forum.

    If you aren't concerned too much about having your disks defragged or you have SSDs you can easily disable the service.

    In the search box on the taskbar, type defrag and open the program that comes up.
    Once the program is running you can disable the scheduled service and that should disable the resident service as well (if it hasn't, post back here).
    Last edited by swarfega; 30 Dec 2016 at 11:54.
      My ComputersSystem Spec

  4. TairikuOkami's Avatar
    Posts : 3,475
    Home 1809 x64 10.0.17763.134
       30 Dec 2016 #4

    Additionally, you can disable it like this. Run CMD as admin and copy/paste:

    schtasks /Change /TN "Microsoft\Windows\Defrag\ScheduledDefrag" /Disable
    reg add "HKLM\Software\Microsoft\Dfrg\BootOptimizeFunction" /v "Enable" /t REG_SZ /d "n" /f
    reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\OptimalLayout" /v "EnableAutoLayout" /t REG_DWORD /d "0" /f
      My ComputerSystem Spec

  5.    10 Jan 2018 #5

    I found a way to disable the defragsvc.

    1. Run services (services.msc)

    2. Highlight "Optimize Drives" and click on properties.

    3. There is a drop box that allows you to chose Automatic, Manual, or Disable. I chose Disable and it hasn't come on since. Choosing Manual did not work. It still kept coming on continuously. I suspect something is broken but not a problem anymore.

    4. Ran a stopwatch on my phone for 10 minutes & kept taskmanager open to see if anything would spike again. No spike after this. I noticed that before I did this, about every 2 minutes that stupid defragger would run.
      My ComputerSystem Spec


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