This technology allows Windows OS to manage random memory so that your apps can perform efficiently. It helps third-party apps and critical Windows components to execute quickly common tasks. It copies all your commonly used files to RAM. Superfetch caches data to RAM so that it can be immediately available to your application.
Sometimes this can affect the performance of certain applications. It tends to not work well with gaming, but can improve performance with business apps. Its Windows way of making things easier for users. SuperFetch is a technology in Windows Vista and onwards that is often misunderstood. SuperFetch tries to make sure often-accessed data can be read from the fast RAM instead of the slow hard drive.
Your disk working at or near percent causes your computer to slow down and become laggy and unresponsive. As a result, your PC cannot perform its tasks properly. SuperFetch is a technology which allows Windows to manage the amount of random access memory in the machine it runs on more efficiently. With SuperFetch, background tasks still run when the computer is idle.
However, you should be able to fix that using one of our solutions. Very succinctly put, SuperFetch is a technology which allows Windows to manage the amount of random access memory in the machine it runs on more efficiently. Otherwise, turn it back on and continue troubleshooting. Now the SuperFetch SysMain service is permanently disabled and will not restart the next time you start your computer.
Before you start doing anything inside the registry, make sure you take a full backup of the registry first, just in case anything goes wrong. This registry entry will disable the SuperFetch SysMain service on your system.
However, you may need to restart your Windows machine before this registry setting takes effect. If you prefer working with the command prompt, there are some simple commands you can use to enable or disable the SuperFetch service. Open the command prompt in administrator mode first, and then use the following commands:.
If you prefer PowerShell , open it with administrator rights and use the following commands:. This approach can be much faster and simpler than clicking around in the Task Manager or the Windows registry. SSD drives are very affordable now, and have data-transfer rates far above that of traditional hard drives.
Ryan has been writing how-to and other technology-based articles online since In PC with little and barely enough system memory, SuperFetch will likely cause memory intensive textures to frequently swap in and out of memory and thrash to disk, slowing the overall performance, and in worst case, when using memory hogging software, causing out of memory crash error.
SuperFetch is enabled by default in every Windows installation. You will have to try it out on your system, calculate your own benchmarks and decide for yourself if you should disable SuperFetch. If it works and improve system performance, it may be a complement among many ways to speed up Windows. In fact, with the popularity of SSD as the replacement for traditional hard disk, the speed of reading from disk has been sped up tremendously and the computer is very much more responsive, making SuperFetch memory caching redundant or unnecessary.
If you prefer Windows built-in setting to turn off SuperFetch instead of forcing the SysMain service to stop, change the following registry setting. Previous Next.
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