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.

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:

100% disk usage – This situation occurs when your system works at 100% capacity to deal with the tasks. High disk activity – High disk activity means that your system’s disk is running too many apps, and reaches high levels, even though not at 100% yet. High CPU usage – This is caused by your Central Processing Unit, or CPU working excessively to deal with the tasks at hand.

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 a reliable SSD. An upgrade in hardware mitigates many performance issues.

1. Stop SysMain service

1.1 Using the Services app

1.2 Service Host SysMain disable using the Command Prompt

2. Edit the DWORD value on your Registry Editor

3. Update Windows

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

What is the use of service host SysMain?

SysMain is a legit Windows service meant to optimize the computer’s performance by reducing the app loading time. It does so by continuously collecting data about the app usage pattern. And 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 and slowing down the PC. And once you have fixed the problem, do check some quick tips to boost 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.

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