How To Fix High CPU Usage Service Host SysMain


According to several users, the service host SysMain process (previously known as Superfetch) consumes a lot of CPU. While the SysMain service aids in determining how you use your hard disc, it is unnecessary for your computer to function. This article will walk you through the various options for resolving the service host SysMain problem.

The SysMain service is linked to the Superfetch service. Its job is to maintain the system up and operate smoothly while also improving it over time and may be found in the System32 directory. The SysMain process is responsible for collecting data from all sorts of system usage. The information is then reorganized into blocks for storage on your hard drive and prioritized as needed. If you want to know about this error you can visit here for more details.

Solution 1: Disabling the Superfetch Service

  1. To bring up the quick menu, use Windows key + X to launch Command Prompt (admin)
  2. After that, at the command prompt, you need to type net.exe stop superfetch.
  3. Last but not least, please press the enter key.

Examine your CPU use to see if the service host sysMain problem has been rectified. If that’s not the case, please go to the next step.

Solution 2: Scanning for Malware and Viruses

Excessive CPU use is the most common sign that your computer is infected with a virus or malware. To scan for viruses and malware, follow these steps:

  1. First and foremost, you have to type “Windows Defender” into the search box by pressing Windows key + S.
  2. In the second step, you must launch Windows Defender.
  3. Then, from the scan options, please choose full and click scan now.
  4. Please restart your computer when the scan is done.
  5. To launch Task Manager, click Ctrl+ALT+DELETE on your keyboard.
  6. Finally, verify your system’s CPU consumption to see if the issue service host sysMain has been resolved.

Solution 3: Turning off Backups. Intelligence Transfer Service

  1. The first step is to launch task manager by pressing CTRL+ALT+DELETE, then selecting task management.
  2. Next, you need to go to the Services tab and then to the Open Services drop-down option.
  3. After that, look for information about Intelligent Transfer Service’s history.
  4. Finally, you need to right-click on it to stop it.

Solution 4: Directly disabling Service Host Local System tasks

    1. First and foremost, let’s suppose you’re in the Task Manager right now. To find out which items use the most disc space, CPU time, or RAM, expand the Service Host: Local System area.
    2. Once you’ve identified the items consuming too many resources on your computer, right-click on them and select End Task.
    3. Repeat as needed until all suspicious tasks have been terminated. Meanwhile, keep an eye on the CPU, disc, and memory tabs to see if the percentage figure decreases.
    4. Once you’ve located the item causing the problem, please right-click it and select Open Services from the menu.
    5. Next, go through the services in Task Manager until you find one with the same name and right-click it. After then, you must press the Stop button.
  • After you’ve found the service that’s causing the problem, double-click it, expand the Startup type option, and choose Disabled. Then, press the Apply and OK buttons. 

Solution 5: Disabling Automatic Updates

  • Press the Windows key + R to launch the run command. and the next step is to type services.msc
  • When you double-click on Windows Update, a pop-up window should appear. After that, you have to select Disabled from the Startup type drop-down menu.
  • Finally, after selecting OK, you must restart your computer. 

I am a professional blogger share guide about the Technology, Internet, WordPress, Blogging tutorial, SEO techniques, and getting traffic to the Site. I love to learn new things related to latest technology, if you have anything in your mind please do share with me at