Windows 7 was running slow Superfetch was off

    General discussion

  • Well not sure why the super fetch was off to begain with but running the performance trouble shoot discovered superfetch was off and so it fixed it by turning it on. Now Win 7 flying like I expected it too
    Posted By Mikro
    Friday, May 15, 2009 1:23 AM

All replies

  • Was it simply the service "Superfetch" that was off or did you change some other setting? The service is certainly on by default, but Superfetch has been doing very little work since post-beta builds.
    Friday, May 15, 2009 2:55 AM
  • The service was off or disable and the auto fix in the trouble shooter turned it on about a restart and hour later win7 woke up from it's snail pace speed I was experiencing superfetch is on and the whole system flying now I'm looking at what caused the senero of the super fetch service was disabled by an error or something because everything was fine one day after install for the first time then as I added Microsoft office word and windows Live essentals things started slowing down so I discovered the trouble shooters ran the performance trouble shooter and it discovered superfetch was off. it had do you want to fix this I clicked ok and it came up in green text saying scussesfully fixed then I restarted whooola everything thing is fixed and fast
    Posted By Mikro
    Friday, May 15, 2009 3:03 AM
  • Super fetch service still shutting down at random throught a day the event logs are clean Anyone have any Ideas or is this a reported issue and I just need to live with it ?
    Posted By Mikro
    Monday, May 18, 2009 10:24 PM
  • how much RAM do you have?
    Wednesday, May 26, 2010 11:35 AM
  • HOW DID YOU TURN IT ON? My auto fix can't seem to turn it on and I have endless startup problems. Am getting desperate for a fix.
    Monday, June 06, 2011 2:15 AM
  • How do you turn it on?  I am running windows 7 and office 7 and for some reason, my superfetch is not running?


    Sunday, July 10, 2011 4:09 PM
  • Were you able to turn it on? My auto fix can't turn it on either.

    Manuel Robles
    Sunday, July 10, 2011 4:47 PM
  • Superfetch does a lot in Windows 7.  It seems to reserve all available ram for caching applications, but releases ram when it's needed.  As admin you can delete everything under c:\windows\prefetch and reboot.  But then you'll have to idle until the layout.ini (Readyboot uses it) file is recreated, and then boot/login 5x to retrain Readyboot, or just let it happen over the course of time.

    This command makes the layout.ini file too and does a boot semi-defrag of every file inside it:

    start /wait rundll32.exe advapi32.dll,ProcessIdleTasks

    I only put the start /wait in to see when it's done (20 min?).


    Monday, July 11, 2011 5:30 PM
  • For those who want to turn off or on SUperfetch this can by done by the following steps:

    To run this command simpy open windows start menu and in the searchfield type: services.msc

    In this list look for superfetch, and double click on it here you can choose to enable or disable it (more options available but it suggest to just choose for enable).

    Good luck all :)

    Sunday, December 23, 2012 12:20 PM