Here is how to suspend the Service Host SysMain on your box.
SysMain service previously known as superfetch service is supposed to improve system performance and normally it does.
Sowhat is SysMain service?
why its running in the background and can I disable SysMain service on windows 11?
Lets take a look, whySysMain service causing High disk usage problemon windows 11 and how to fix it.
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What is SysMain windows 11?
Service Host SysMainpreviously known asSuperfetchis a windows service that runs in the background.
Based on this information,SysMain efficiently arranges your hard disk at the block level.
Overall this utility optimizes system performance.
Service Host SysMain preloads frequently used programs into cached memory without affecting system performance.
Why SysMain High Disk usage?
Few users reportService Host SysMain High disk Usage in Windows 11.
The computer slows down, freezes and the disk usage is very high.
Can I disable Service Host SysMain?
Check your hard drive
Sometimes disk drive errors also causeHigh disk usageproblem on windows 11.
Lets initiate the check disk utility that automatically detects and fixes disk drive errors on your box.
Run SFC Scan
Malicious and corrupt files present on my computer can also cause this issue.
RunSFC scanto get rid of the issue.
In addition, we recommend perform a full system scan with the latest updatedantivirusor antimalware utility.
Try these 8 solutions 2025
