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How to Disable SuperFetch in Windows 7 & 8

Windows has many useful built-in services and applications, but some of them are designed for older hardware. SuperFetch could be one of those system services, and disabling it in both Windows 7 and Windows 8 might help overall performance of your system.

What is Windows SuperFetch

What is SuperFetch?

SuperFetch is a built-in Windows service that was originally designed to improve loading times for both Windows and all installed applications. It does so by analyzing which programs are frequently ran and automatically “pre-loading” them in advance by reallocating system resources (mostly just extra RAM) in the background. Note that this often involves writing data to the drive that Windows is installed on. But SuperFetch was made with slow HDD’s (hard disk drives) in mind. With modern 7200+ RPM drives, SuperFetch load time improvement becomes negligible, and this is even more true with SSDs (solid state drives) where the service actually becomes detrimental to both the system performance and health of the drive.

Long story short, if you have Windows installed on a SSD you don’t want SuperFetch. If you’re running on a fast HDD, you probably won’t notice much of a difference when disabling it.

Disabling SuperFetch

In Windows 7, click the Start button and type: services.msc in the Search field. to open up the Services snap-in.

services.msc Windows 7

Or in Windows 8, use the keyboard shortcut Windows Key + R to bring up the Run line and type: services.msc and hit Enter.

RUN Windows

Scroll down the services page and right click on the one named Superfetch. Select Properties from the context menu.

superfetch propeties from services panel

On the General tab, click the menu labeled “Startup type.” Choose the Disabled option, and if possible click the Stop button below it. Press OK to exit and save changes.

general startup type to disable and stop it

SuperFetch should now be disabled and won’t run again unless you manually go back in and set it to Automatic startup. If you test this out and experience an increase in system speed, definitely leave us a comment and let us know. Or, if it doesn’t help, we’d like to hear that too!

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10 Responses to How to Disable SuperFetch in Windows 7 & 8

  1. Ziggy March 26, 2013 at 3:26 pm #

    Either I’m imagining things or things are really faster with Superfetch disabled. Prior to disabling Superfetch, Microsoft’s IE10 browser was one of the more painful applications to start.

    IE10 now starts at an instance. Figure that one out! Same effect for Word 2007. Things seem that little bit more zippy with other non-Microsoft programs as well.

    Thanks for the tip. I’ll persist for a while and change back and forwards just to make sure that Superfetch is really making my computer faster. Either that or my imagination is playing havoc with my mind…

  2. BillyBean March 26, 2013 at 10:26 pm #

    I had the same experience. With SuperFetch disabled everything seems to load noticeably faster. it isn’t a lot. I’d say close to a 10-15% difference.I’m running a Samsung 840 SSD.

    Do you have a SSD or regular HDD?

    • Ziggy March 26, 2013 at 11:19 pm #

      Regular hard drive. Tried this with my laptop but no real noticeable improvement. Seems to work the best with my pc desktop, which makes sense because it has a higher spec hard drive than the one on my laptop.

    • No One May 12, 2013 at 8:55 am #

      Thanks for posting. I just got a new PC with a Samsung 840 like yours. I don’t appreciate paging files and other nonsense adding wear and tear to this expensive device.

  3. Michel March 27, 2013 at 8:03 am #

    If I would keep only 1 tech news letter, it would be yours:-)
    I agree with the other people, everything seems to be more snappy, no lag and I second the IE10, WAY FASTER than before.
    I am running a hybrid drive with 40 gig SSD and 750 gig conventional 7200rpm i7 HP laptop

    Thanks again and continue this excellent job.
    PS: I get a load of news letter, BUT the only one that I religiously read upon arrival is yours

  4. Mark Turnbull June 10, 2014 at 10:45 pm #

    Running Windows 8.1 on a Samsung Ultrabook. Periodically I would have 100% Hard Drive utilization and molasses-like performance. It seemed that Superfetch was the culprit so I just disabled it and the Hard Drive went back to normal.

    • Mark Turnbull November 13, 2014 at 6:07 am #

      Update to my previous comment: Superfetch re-enables itself periodically no matter what I do, so I created a scheduled task to stop the service every five minutes. Crude and ugly I know, but it does keep the damned thing from gumming up the works. Now the only thing I see sending the hard drive into 100% is Chrome. So much for it being a “lightweight” browser.

  5. Ivo November 8, 2014 at 12:25 am #

    Wow ! thanks !! i’m using win7 ultimate x64 sp1 and it does increase load times of all applications ! even steam ! thanks allot !

  6. Lisa February 6, 2015 at 11:08 am #

    This helps so much. I’ve been shutting Superfetch off every time I restart my laptop and it was annoying. If I didn’t do it, svchost would just keep using more and more memory until nothing would function.

  7. W Wells February 21, 2015 at 5:00 pm #

    Wow this really sped up my system.

    SuperFetch was causing enormous disc accessing up to 100% capacity; disabling it dropped it to nearly zero. Everything runs fine. This program is a real dog.

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