The SysMain process consumes many CPUs, as observed by many customers. It helps determine how much hard disk space is used. This is not necessary for your computer.
The SysMain process is a Windows service, and you must keep it running. If you’re using Windows 8 or 10, then this service won’t start automatically. Here are the steps you need to perform if you want to start the SysMain service manually: Right-click on the Start button and select Command Prompt. Type in “sc query type= service” and press Enter.
Introduction of ServiceHost SysMain?
Hosting service SysMain is a legitimate service. However, you may have encountered an older version of Windows. This tool analyzes the performance and usage of “system processes.”. It also optimizes app opening and closing times. It operates in the Background and is enabled by default. Its task is to keep the “system performance” smooth and improve it over time.
Different Ways to Fix Service Host: Sysmain High Disk Usage
Restart Your Computer
if any Windows services or functions stop working. After restarting your computer, you can begin troubleshooting. You will be able to clear all cached data and settings. This will allow all Windows components to start from scratch. This method can often resolve the ‘Service Host SysMain’ High CPU Usage problem.
If you are still experiencing issues after clearing the cache and rebooting your computer, it may be due to a corrupt registry or virus. Please refer to the following troubleshooting steps: Open Regedit and locate the following key:
HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\Winlogon\Shell\RunAsUser. In the RunAsUser value, delete the path to the file that is causing the issue. You can find the file by going to Start > Run and entering in Regedit. This is the file that is causing the high CPU usage.
Disable Sysmain with Command Prompt
It’s a little easier to use the Command Prompt method since you only have to copy-paste a command. In sys main, it can be used to resolve high disk usage.
- Click on the Start button and type “command prompt.”
- Right-click on Command Prompt and select Run as an administrator.
- Enter the following command into the command prompt (admin) window:
- sc stop “SysMain” & sc config “SysMain” start=disabled
- Once you receive the SUCCESS notification, consider the work completed.
- Restart your computer.
Turn off Backup Intelligent Transfer Service
Programmers and system administrators use the Intelligent Transfer Service (BITS). It facilitates downloading and uploading files from HTTP web servers and SMB file shares.
- The task manager can be accessed by pressing CTRL+ALT+DELETE and then selecting it.
- From the Services tab, select Open the Services under the menu.
- In the Background, find the “Background Intelligent Transfer Service.”
- Close it by right-clicking on it.
Disable Sysmain Service Through Service Manager
Another option is to disable the SysMain process in order to stop the SysMain-related processes completely. However, this will likely result in a high CPU load on Windows. Memory and disk utilization will likely also be high.
- Press Win+R on your keyboard to open the Run window. Then, type “services.msc” in the command prompt.
- Press Enter to open the Service Manager window. Scroll to the bottom of the page and select the SysMain service.
- Right-click the SysMain service and select Properties to change its startup type to Disabled.
- Press OK to complete the change.
Turn Off Automatic Updates
The system main can be used to solve the issue of high CPU usage. Check if the “service host sustains” problem is resolved by following these steps.
- Hold the Windows button and press R to open the Run command.
- Type services.msc into the Run window.
- Right-click on Windows Update to bring up the properties menu.
- On the Startup type drop-down menu, select Disabled.
- After clicking OK, restart the computer.