Windows 10: Should I disable Superfetch?

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  1.    05 May 2017 #1

    Should I disable Superfetch?


    I know it loads programs to the RAM so they can open faster and actually It doesn't really bother me but I just want to ask - Does it really improve performance that much? My system runs pretty fast, considering its age, and I'm just wondering, will there be a significant decrease in speed if I disable it? Again, it doesn't bother me at all, just curious.
      My ComputerSystem Spec


  2. Posts : 471
    Win 10 Pro 15063.332 (ex-Insider)
       05 May 2017 #2

    The easiest way to find out if you can live with it disabled is to disable it and test the results for yourself.

    However, I know for a fact that, although it may speed up app launching, it runs for a considerable amount of time in the background; thereby, utilizing resources that may/or may not slow down your PC while it is running.

    In any event, I have an SSD so it is a no-brainer for me. I just disable it. No harm in testing this yourself.

    Hope this helps.

    Regards,

    WOT
      My ComputersSystem Spec


  3. Posts : 3,261
    10.5 Home 1803 x64
       05 May 2017 #3

    Superfetch works even when it is disabled (sort of), it just does not create prefetch files & resets upon restart.
      My ComputerSystem Spec


  4. Posts : 471
    Win 10 Pro 15063.332 (ex-Insider)
       05 May 2017 #4

    TairikuOkami said: View Post
    Superfetch works even when it is disabled (sort of), it just does not create prefetch files & resets upon restart.
    Once superfetch is disabled, it remains disabled and it does not reset upon restart on my PC.
      My ComputersSystem Spec


  5. Posts : 3,261
    10.5 Home 1803 x64
       05 May 2017 #5

    WOT said: View Post
    Once superfetch is disabled, it remains disabled and it does not reset upon restart on my PC.
    I meant "superfetch" functionality. If you launch the same software, it will preload into memory and start faster, but it is kept in memory, it will reset upon restart, unlike prefetch files, which keep record forever.
      My ComputerSystem Spec


  6. Posts : 471
    Win 10 Pro 15063.332 (ex-Insider)
       05 May 2017 #6

    TairikuOkami said: View Post
    I meant "superfetch" functionality. If you launch the same software, it will preload into memory and start faster, but it is kept in memory, it will reset upon restart, unlike prefetch files, which keep record forever.
    OK, now I understand what you meant. Yes, I agree that once you load a program it will start faster if you launch the program again before restarting. However, you did bring up another thing that could be disabled (especially if you have an SSD):

    http://www.thewindowsclub.com/disabl...h-prefetch-ssd

    For the record, I did not bother disabling the prefetcher function.
      My ComputersSystem Spec


  7. Posts : 3,261
    10.5 Home 1803 x64
       05 May 2017 #7

    WOT said: View Post
    For the record, I did not bother disabling the prefetcher function.
    I have that disabled too and "prefetching" stills work, I guess it is more related to memory management.
      My ComputerSystem Spec


  8. Posts : 471
    Win 10 Pro 15063.332 (ex-Insider)
       05 May 2017 #8

    TairikuOkami said: View Post
    I have that disabled too and "prefetching" stills work, I guess it is more related to memory management.
    That is interesting. Did you clear the prefetcher folder after disabling and are new entries being created with a current timestamp?
      My ComputersSystem Spec


  9. Posts : 3,261
    10.5 Home 1803 x64
       05 May 2017 #9

    Yes, I use CCleaner and other cleaners, which clean prefetch files. I have it disabled since install and the difference is obvious, mostly with a cold and warm start of a browser, like 5 secs vs half a second afterwards.
      My ComputerSystem Spec


  10. Posts : 471
    Win 10 Pro 15063.332 (ex-Insider)
       05 May 2017 #10

    TairikuOkami said: View Post
    Yes, I use CCleaner and other cleaners, which clean prefetch files. I have it disabled since install and the difference is obvious, mostly with a cold and warm start of a browser, like 5 secs vs half a second afterwards.

    OK, thanks for that information. Here is a cool (portable) utility that lets you examine the contents of your prefetch folder and it even allows you to see the creation dates:

    http://www.nirsoft.net/utils/win_prefetch_view.html

    Here's mine:
    Click image for larger version. 

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      My ComputersSystem Spec


 
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