How to Disable Prefetch & Superfetch in Windows device in 2022?

SuperFetch is a service of Microsoft Windows that helps Windows users to get a smooth user experience. It helps to improve the computer system’s responsiveness by predicting the app you are likely to open.

Like that, the Prefetch program also does the same, and it works to improve different app launching processes. It stores the necessary information and data of the apps you frequently use in a prefetch folder.

Both programs store all your frequently used files or programs to RAM, and that causes high disk usage. Along with the high use of system memory, they will increase cache interference, which will affect your PC’s performance.

Therefore, disabling both of them will help to improve your PC’s performance & you’ll get a better experience than before. Well, in this write-up, we’ll demonstrate How to Disable Prefetch with some effective methods that you can apply with ease.

How Does Superfetch Work?

The Superfetch service now appears under the “SysMain” in the latest version of Windows 10. In the Task Manager, you’ll notice it as “Service Host: SysMain”. If you use an older version of Windows 10, any version of Windows 8, & 7, this will appear as “Service Host: Superfetch”.

This service generally runs in the Background & uses a little CPU power and monitors how much RAM you are using and what apps you run most of the time.

Any apps that are recognized by the service are identified as “Frequently Used”, & start preloading the recognized app into RAM. In this way, when you run the app the next time, it’ll open comparatively much more quickly.

Should You Disable Superfetch & Prefetch

Most users get confused about whether they should Disable Superfetch and Prefetch Windows 10, or not. Well, as we know that, Superfetch caches data of frequently used apps into memory to help them launch quicker.

This process consumes quite some CPU, RAM & Disk resources, which may be the reason for High CPU & Disk usage issues. If you notice, your Pc is often at High CPU & Disk Usage, we recommend disabling Superfetch temporarily that aids in reducing CPU & Disk usage and improving your Pc’s performance.

On the other hand, Prefetch is a mostly similar feature that stores data directly on a slow HDD. it is not necessary to disable it if you don’t want to, as it wouldn’t help improve the PC performance, but can slow down the loading of apps.

How to Disable Superfetch [Effective Methods]

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, disable the Superfetch program to improve your PC’s performance. Follow the below steps to know How to Disable Prefetch Windows 10, 8.1, 7.

How to Disable Prefetch & Superfetch in Windows device

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. Follow the below steps to disable Superfetch through the service app.

Step 1: Go to the “Start” menu and from their search for “Services,” or you can press the “Windows Key+R” together and type “services.msc” on the Run prompt.

press Windows Key+R” together and type “services.msc” on the Run prompt

Step 2:  Now scroll down to and find “Superfetch” and double-click on it. If you are a Windows 10 user, look for “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, 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. However, before using it, you must take a full backup of the registry. In that case, if anything turns wrong, then you can utilize the backup. Simply follow the below steps to disable superfetch through the registry editor.

Step 1: 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 steps 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 “Enable Superfetch,” and now right-click on it, then select the “Modify.”

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

Method 2- Use the Registry Editor

Step 5: At last, click “Ok” and restart your computer.

Method 3: Use Powershell to Disable Superfetch

You can also use PowerShell to remove or disable SuperFace from your computer. It is a much more effortless method to disable the program. Simply follow the below steps to disable superfetch through PowerShell.

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

go to Windows start menu and type “Powershell” on it

Step 2: Now right-click on Powershell and choose “Run as administrator.

right-click on Powershell and choose “Run as administrator”

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

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

Copy and paste the below-mentioned command into the elevated PowerShell window

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 straightforward to disable superfetch cmd, and here is the possessor you need to follow.

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

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 and press enter – sc stop “SysMain” & sc config “SysMain” start=disabled

Copy and paste this code in the command prompt window and press enter

Step 3: After that, simply close the program and restart your PC and you are done.

How to Disable Prefetch [Effective Methods]

As we already said, Prefetch is almost similar to the Superfetch system, and there is very little difference between them. Well, if you want to remove or disable prefetch from your PC to improve its performance, follow the below steps. Here you can learn How to Disable Prefetch Windows 8, 7, and even 10.

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. The below-mentioned method is effective to Turn Off Prefetch Windows 10, 8, and 7.

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

press Windows+R together to bring the Run Prompt, then type “regedit” and click ok

Step 2:  Now follow the following steps from the Registry Editor –

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

double-click on Enable superfetch

Step 3:  Now, you will see the “Enablesuperfetch,” then double-click on it.

Step 4: Now type “O” in the Value data box of “DWORD,” and you are done.

Now type “O” in the Value data box of “DWORD,” and you are done

Frequently Asked Questions

When it’s disabling Superfetch and Prefetch from your PC, some questions may arise in your mind. Here we have answered some of the common questions asked by several users.  Follow this section; you may find the answer to your questions.

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 frame rate drops in games and in different videos. You should disable this program if you notice frame rate drops.

Is it Safe to Uninstall Superfetch and Prefetch?

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

Final Thought

Now, you may comprehend How to Disable Prefetch and remember to never disable these programs without any urgent reasons. That is because SuperFetch and prefetch both play a vital role in starting PC apps a little faster. Moreover, disabling these programs can affect your PC’s performance. However, when you notice prefetch and SuperFetch create many problems, disabling them for a short time will be the better option. Even then, if you face any difficulties, regarding the issue, let us know in the comment section below.

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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