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Reduce Service Host SysMain High Disk Usage in Windows 10

Find out how to use the Registry Editor to solve Windows 10 errors

4 min. read

Updated onSeptember 27, 2024

updated onSeptember 27, 2024

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Key notes

Several users have reported Service Host SysMain causinghigh disk usageandmemoryissues in Windows 10, which can be a problem since it will negatively impact your performance.

In this article, we’ll explore a few troubleshooting steps to help you resolve the issues you might have with this service, so let’s get started.

How do I fix Service Host Sysmain high disk usage on Windows 10?

If you want to skip these solutions’ rigors, you should consider upgrading from HHD to areliable SSD. An upgrade in hardware mitigates many performance issues.

1. Stop SysMain service

2. Run SFC and DISM scans

For some of our readers, this issue was caused by one or more corrupted system files, and the System File Checker and DISM tools fixed this problem so you should try it. You can also tryspecialized softwareto ease this process significantly.

3. Edit the DWORD value on your Registry Editor

4. Update Windows

Installing Windows updates can fix the high disk usage issue caused by a glitch in the operating system.

What is Service Host Sysmain?

Service Host SysMain (earlier known as Superfetch) is a bundle of system processes. You are most likely wondering how it works.

This processes package is supposed to optimize the apps launching and speed up their starting, but sometimes it can do quite the opposite, causing high disk and CPU usage.

What causes SysMain’s high disk usage?

Have you ever wondered why is Service Host Sysmain causing high disk usage? Missing updates are the most common cause of this problem, so it’s advised to keep your PC up to date to avoid such issues.

In addition, if this service is causing problems, you might want to try disabling it. Other Sysmain issues include:

What is the use of service host SysMain?

SysMain is a legitimate Windows service that optimizes the computer’s performance by reducing the app loading time. It does so by continuously collecting data about the app usage pattern.

Once it has a sufficient amount and has identified a pattern, for instance, a user opening the Mail app at 10 AM, it will automatically load the required files so that the app launches quickly when a user manually does that.

If the SysMain is causing high disk usage in Windows 10, this can make your computer slow, affecting the performance of other programs andslowing down the PC.

Once you have fixed the problem, do check some quick tips toboost performance in Windows 10.

Did you find a solution to this problem on your own? Feel free to share your answer with us in the comments section below.

Reduce Service Host SysMain High Disk Usage in Windows 10#

How do I fix Service Host Sysmain high disk usage on Windows 10?#

1. Stop SysMain service#

2. Run SFC and DISM scans#

3. Edit the DWORD value on your Registry Editor#

4. Update Windows#

What is Service Host Sysmain?#

What causes SysMain’s high disk usage?#

What is the use of service host SysMain?#