How to Disable Superfetch (Official Dell Tech Support) by TechSupportDell   3 months ago


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Superfetch and Prefetch services impact your PC's performance and are notorious for occupying the disk at 100%. In this video we show how to disable Superfetch and Prefetch in Windows 10.
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Welcome Dell Tech Support. Prefetch & Superfetch are services that pre-load programs, apps and files for improved responsiveness but can sometimes eat up your computer’s disk space. Today we will look at what to do when the Task Manager shows that the disk is used being used at 100% by these services. To disable these services, press the WINDOWS key and the R key to open the Run operation. Type in ‘services.msc’ and click OK. Scroll down to Superfetch and double click on it. In the General Tab, change the Startup type to Disabled. Click Apply and then OK. Press the WINDOWS key and R key again and type in ‘regedit’ and click OK. The Registry Editor program dialogue box will open. Click Yes to accept changes. Expand H-Key-Local_Machine then System. Next expand CurrentControlSet and then Control. Scroll down to Session Manager and expand it. Expand Memory Management and open the PrefetchParameters folder. In the right pane, double-click on EnablePrefetcher and set its Value data to zero ( 0 ) to disable it. Do the same for EnableSuperfetcher if your system has it listed. Click OK, close the window and restart your System. Check your Task Manager to see if this resolves the problem. If it does, you can leave these services disabled if your system contains a Solid State Drive (SSD). However, if the problem persists, or you have a Standard Hard Drive (HDD) and the problem appeared recently, we recommend restoring your operating system to an earlier date. To check which type of hard drive you have, the easiest way is to press the WINDOWS key and the S key to open the search box and type in Optimize. Click on Defragment and Optimize your Drives and look under Media Type for the drivers listed (SSD or HDD). To learn how to restore your operating system to an earlier date, watch these instructional videos about performing a system restore, creating a restore point date, and backing up your data.
How to Perform a System Restore in Windows 10
How to Create a Restore Point in Windows 10
How to Back Up your Data
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