How to Disable Superfetch and Prefetch Any Windows Device

Superfetch is a service of Microsoft Windows that helps Windows users to get a smooth user experience. It helps to improve the computer systems responsiveness by predicting the app you are likely to open. Like that Prefetch program also does the same work to improve different app launching processes.

It stores necessary information and data about the app you frequently use. Both programs store all your frequently used files to RAM, and that causes high disk usage. Along with the high use of system memory, they will increase cache interference. It will affect your PC’s performance, so try to disable both of them to improve your PC’s performance. If you don’t know how to disable prefetch, follow the below process.

How to Disable Superfetch

Superfetch will help reduce the app or program launching process, but it can also cause several issues on your device. It can also cause high hard drive usage, can create memory issues, and also poor performance. So if you are facing all these issues, then try to disable the Superfetch program. When superfetch will not be in service, it will not create any CPU or memory issues anymore. Superfetch has different names, and in Windows 10 it is known as a Sysmain. Here are the methods to disable the program.

How-to-Disable-Superfetch

Method 1 – Use Service App to Disable Superfetch

Many options are available to disable Superfetch from your computer. And also, it is one of the easy and effective ways to disable superfetch group policy. Follow the below steps to disable Superfetch through the service app.

Step 1 –  At first, click on the start menu and type “Service” on the search bar to launch the service app. Or on the other hand, you can press the Windows key and R together and type services.msc on the Run prompt.

Method 1- Use Service App to Disable Superfetch

Method 1- Use Service App to Disable Superfetch

Step 2 –  Now scroll down to and find out Superfetch and double click on it. If you are a Windows 10 user, then look for SysMain. Because SuperFetch is renamed to SysMain.

Method 1- Use Service App to Disable Superfetch

Step 3 –  Now tap on “General” and select “Disable” from the “Status Type.”

Method 1- Use Service App to Disable Superfetch

Step 4 – Now, basically click “Ok” and it will save the changes.

Method 1- Use Service App to Disable Superfetch

Method 2 – Use the Registry Editor

Sometimes the Service app system does not work well, so you can use the Registry Editor option. Before using it, must take a full backup of the registry. In that case, if anything turns wrong, then you can utilize the backup. Carefully read this to disable Superfetch from your device.

Stage 1 – Click on the beginning menu and type “regedit” on the pursuit bar and select it

Step 1 – Simply press Windows and R together to bring the Run Prompt, then type regedit and click ok.

Step 2 –  Now follow the path from the Registry Editor.

HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet >Control > Session Manager > Memory Management > PrefetchParameters.

Method 2- Use the Registry Editor

Step 3 –  When, you will see the “EnableSuperfetch,” at that point  right-click on it and select the “Modify.”

Step 4 – Now  “DWORD” value box will appear on your screen, and type “O” in the Value data box.

Method 2- Use the Registry Editor

Step 4 – At last, click “Ok” and do restart your computer.

Method 3 – Use Powershell to Disable Superfetch

By using the Powershell, you can disable the superfetch, which is much easier than other methods. So follow the steps to disable the PowerShell.

Step 1 – Use the search bar from the Windows start menu and type “Powershell” on it.

Step 2 – Now right click on the Powershell and choose “Run as administrator.”

Step 3 –  Copy and paste the below-mentioned command into the elevated Windows PowerShell and press enter.

Stop-Service -Force -Name “SysMain”; Set-Service -Name “SysMain” -StartupType Disabled

Method 3- Use Powershell to Disable Superfetch

Step 4 – Close the elevated PowerShell Window after performing the command.

Method 4 – Use Command Prompt

Using Command Prompt is also pretty similar to the PowerShell system. You can disable the SuperFetch service by using the command prompt or cmd. It’s very easy to disable superfetch cmd, and here is the possessor that you need to follow.

Step 1 – At first, click on the Windows start icon and type “Command Prompt,” then right-click on it and click on “Run as administrator.”

Step 2 – Copy and paste it in the command prompt window –

sc stop “SysMain” & sc config “SysMain” start=disabled

Method 4- Use Command Prompt

Step 3 – After that, simply close the program.

How to Disable Prefetch

As we already said, Prefetch is almost similar to the Superfetch system, and there is very little difference between them. It makes the frequently used apps launching process faster and smoother. Here we will use the Registry Editor to disable the program.

Method 1 – Use The Registry Editor

You can disable the Prefetch option by using the Registry editor. It is the simplest method to disable Prefetch from your device. To perform this, follow the below-mentioned steps.

Step 1 – Simply press Windows+R together to bring the Run Prompt then type “regedit” and click ok.

Method 1- Use The Registry Editor

Step 2 –  Now follow the following path from the Registry Editor.

HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control . Session Manager > Memory Management > PrefetchParameters.

Step 3 –  Now, you will see the “Enableperfetch,” then double click on it.

Method 1- Use The Registry Editor

Step 4 – Now type “O” in the Value data box of “DWORD.”

Method 1- Use The Registry Editor

Frequently Asked Questions

Some common questions may arise in your mind about the disabling process. If you also have some questions, then read this article carefully. Here we have listed questions and answers that are frequently asked by several users.

Can I Disable Superfetch in Windows 10?

You can simply disable superfetch Windows 10 through cmd. Follow the following path. Open Command prompt as  “Run as administrator” then past “sc stop “SysMain” & sc config “SysMain” start=disabled” and hit enter.

Why I Can’t Find Superfetch on Windows 10

You cannot find Superfetch on Windows because Microsoft modified the name to SysMain. Therefore look for SysMain and disable it if you wish to disable it to develop your PC’s performance.

Does Disabling Prefetch Help to Develop FPS?

Of course, disabling prefetch will help you to increase the FPS rate. Because it will prevent random framerate drops in games and in different videos. You should go for disabling this program if you notice framerate drops.

Is it Safe to Uninstall Superfetch and Prefetch?

Superfetch and Prefetch stores program files into RAM, so it can create high CPU and memory consumption issues. If you have only an SSD on your PC, then uninstalling these programs will be a great choice.

Final Thought

Now you perfectly know how to disable prefetch and do not ever disable these programs without any urgent reasons. Disabling these programs can affect your PC’s performance. But when you see prefetch creating many problems, then disabling it will be the better option.

Especially when you are an SSD user and your SSD is fast enough, then disable superfetch with SSD. It will let you get rid of memory and CPU utilization issues. We hope you find this article helpful, and if you have any questions regarding this article, please let us know.

Hello! This is Denny Davis. I’m a software engineer, specialized in windows and android platforms. The “Fixing Advice” is the site that I specially designed to solve your android and windows related technical problems.

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