Many Windows users have complained that Service Host Local System Network Restricted is using about 98% of their CPU space. Service Host Local System high disk usage first came to light when Windows 8 was introduced. From that time, this problem has plagued the Windows OS and is still affecting Windows 10. Apart from taking up space of the CPU, it also slows down the data reading and copying speed of the computer by 72 MB/s from the original speed. 

However, this Service Host Local System Network Restricted is not one service and is quite ambiguous. Additionally, this kind of problem can also be caused if there is a memory leak. But, luckily it was found that the service that created this problem is a system service of Windows called “Superfetch”. Microsoft claims that this service is there to boost computer performance. However, as it is seen from the experience that it only creates problems. So, it is better to solve this problem and stop it from using up more of the CPU space. 

What is Service Host Superfetch?

Windows introduced Superfetch to help the apps in running efficiently. This was first introduced in Windows Vista and it is being used since then. Superfetch helps the critical Windows components and third-party apps to perform common tasks quickly. In order to do this, Superfetch uses the RAM instead of the hard drive to store and read data for the apps that are used regularly. 

In storing the data to the RAM, it enables fast bootup of the programs. However, Service Host Superfetch can take up high disk space if your computer is not having the latest hardware. So, let us see how we can prevent Service Host Local System high disk space usage from happening.       

Probable Solutions for Service Host Local System High CPU Usage:

So, let’s go through the solutions to fix this Service Host Local System Network Restricted high CPU usage problem.

Solution 1: Disable the Superfetch Service

  • Open the Run dialog box by pressing the R and the Windows button simultaneously. 
  • Now, within the Run box, you have to type “services.msc” and hit Enter.
  • After that, search the list for “Superfetch”. 
  • Then, to edit its settings, you have to open Superfetch by double-clicking on it. 
  • After that, stop the service of Superfetch by pressing the “Stop” option. 
  • Now, select the “Startup type” option and set it to “Disabled”. 
  • Next, click the “Apply” option and confirm it by pressing “OK”. 
  • Lastly, reboot your computer. When your computer turns back on, check if the problem of “Service Host Local System high disk usage” still persists.

Solution 2: Run DISM and SFC Scan

If your files get corrupted, this Service Host Local System high CPU usage problem can occur. Hence, to repair these files, you can do an SFC scan. Follow the given steps to perform the solution correctly:

  • To open the “Win + X menu”, you have to press the X and the Windows button simultaneously. Then, from the list, you have to select the “Command Prompt (Admin)” option. However, if you do not find this option, then you have to choose the “PowerShell (Admin)” option. 
  • After opening the Command Prompt, you have to write “sfc/scannow” and then hit Enter. 
  • The SFC will start the process of scanning. You must interrupt the process as it can take about 10 minutes to complete. 

After the completion of the SFC scan, check if the problem of “Service Host Local System high CPU usage” is solved. If you see that the problem is still there or you are unable to perform the SFC scan, then you should consider doing the DISM scan. Follow the given steps completing the process successfully:

  • At first, you have to open the Command Prompt as administrator. 
  • Then, within the Command Prompt, you have to write “DISM/Online /Cleanup-Image /RestoreHealth. 
  • Now the process of DISM scan will start. Do not interrupt the process as it will take about 15-20 minutes to complete. 

After that, check for the “Service Host Local System high disk usage” problem when the process of the DISM scan is completed. There is a great chance that the problem will be solved. However, if the problem still persists, you can go to the next solution. 

Solution 3: Perform a Clean Boot

One of the major reasons for this problem is some third-party applications. So, in this case, it is recommended to disable all those applications and services that are not essential in running the computer. Follow the given steps to successfully complete the procedure and fix the problem of Service Host Superfetch taking up too much disk space:-

  • Use an Administrator account to log into your computer.  
  • Open the Run dialog box by pressing the R and the Windows button simultaneously. 
  • In the Run box, you have to type “msconfig” and then hit Enter. 
  • After that, go to the tab of “Service” and then select the option of “Hide all Microsoft Services” and uncheck the box. 
  • Next, you have to select the “Disable All” option. Then, click on “OK” to confirm your choice. 
  • After that, go to the “Startup” tab. On this tab, click on “Open Task Manager”. 
  • Now, in the Task Manager, you have to click on “Startup”. 
  • Then, you have to disable all the applications which are enabled. 
  • You have to select each of them individually and disable them. After doing this, reboot your computer. 
  • Your computer will not boot up in the state of “Clean Boot”. 

See if the Service Host Superfetch using too much CPU storage has been fixed or not. If you see that the error is fixed, then one by one enable the services and check for which of the services the error is coming back. You can also disable the service or reinstall it again. 

Solution 4: Use System File Checker

  • First, you have to go to the Start menu and write “cmd”. From the search results, you have to right-click on the icon of “Command Prompt”. After that, from the appearing option menu, you have to select “Run as Administrator”. Then, you have to accept the UAC prompt. 
  • Now, you have to type “sfc /scannow” in the Command Prompt and hit Enter. 
  • You have to wait for the scanning to complete and it will do the fix also. If the process is successful, a message will show up on the screen. 
  • After that, you have to write the command “dism /Online /Cleanup-Image /RestoreHealth”. When the running of this command will be completed, check the memory load of the CPU.

Your “Service Host Local System high disk usage” problem has been solved if you see that the CPU disk usage is normal.          

Concluding Section

Hope that from the above discussion, you are able to understand what is Service Host Superfetch and how to solve this Service Host Superfetch taking up high CPU space? These are the easiest and the most effective methods and you will definitely be able to solve your problem by applying these top-notch solutions.