Superfetch high disk usage


  1. Posts : 218
    Windows 10 HOME SINGLE LANGUAGE 2004
       #1

    Superfetch high disk usage


    Do you need superfetch? Can you disable it? My superfetch consume 100% disk usage everytime windows start
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  2. swarfega's Avatar
    Posts : 7,086
    Windows 10 Pro 64-bit
       #2

    It's preferable to keep it if your main drive is an HD. You can usually disable it for SSDs.
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  3. TairikuOkami's Avatar
    Posts : 4,657
    Windows Home Dev 21H1 x64
       #3

    mikelferdinan said:
    Do you need superfetch?
    If you want your software to start in 3 secs instead of 4 secs (at the cost), then yes, you need it.

    mikelferdinan said:
    Can you disable it?
    Enable or Disable SuperFetch in Windows | Tutorials

    Start - Run - CMD as admin:
    Code:
    sc config SysMain start= disabled
    reg add "HKLM\System\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters" /v "EnablePrefetcher" /t REG_DWORD /d "0" /f
    reg add "HKLM\System\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters" /v "EnableSuperfetch" /t REG_DWORD /d "0" /f
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  4. eLPuSHeR's Avatar
    Posts : 2,445
    Windows 10 Home x64
       #4

    Superfetch should settle down after a while. You could try flushing contents of Windows\Superfetch folder; reboot your PC and see what happens.
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  5. tr00don's Avatar
    Posts : 13
    Windows 10 Home 64-bit (v.1909)
       #5

    Superfetch preloads applications that you use often. This means that when you start the computer it will take a bit longer to become responsive and then launching those applications will be a bit faster. But you don't really need Superfetch, it's safe to disable.
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  6. eLPuSHeR's Avatar
    Posts : 2,445
    Windows 10 Home x64
       #6

    I advice to disable Superfetch only if you are facing issues. Otherwise you will incur in a noticeable speed degradation over time, even with SSD. And nowadays Superfetch does more than just preloading apps into memory. It's more complex than that.

    PS - By the way the new service name for Superfetch is now SysMain.
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  7. RoasterMen's Avatar
    Posts : 832
    Windows 10 LTSC
       #7

    It's still caled SuperFetch in 1803, or am I missing something? Task Manage calls it still.
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  8. Berton's Avatar
    Posts : 10,506
    Win10 Pro Versions 2004 and 2009/20H2, Win10 Pro IP_Dev, Win10 Home 1909
       #8

    It's still caled SuperFetch in 1803, or am I missing something? Task Manage calls it still.
    It doesn't take much to call a program or application, example would be to press Windows key + R and type Write [from back in Windows 3.xx days of the early '90s], will call up Wordpad.
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  9. bro67's Avatar
    Posts : 8,350
    Mac OS Catalina
       #9

    mikelferdinan said:
    Do you need superfetch? Can you disable it? My superfetch consume 100% disk usage every time windows start
    Yes you do need it and it is typical for Superfetch to consume some disk usage when you start Windows.
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  10. FunkMaster's Avatar
    Posts : 216
    Windows 10 Home
       #10

    mikelferdinan said:
    Do you need superfetch? Can you disable it? My superfetch consume 100% disk usage everytime windows start
    I see this all the time too, seems a poor use of system resources to me. It will calm down after a short amount of time though, but not short enough to me lol.
      My Computer


 

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