You may wonder what it is and if it is a virus.
This post fromMiniToolprovides the answers for you.
What Is System Guard Runtime Monitor?
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System Guard Runtime Monitor Broker is responsible for monitoring and proving the integrity of the Windows platform.
The service monitors three key areas:
What is Windows Defender app Guard?
How to enable Windows Defender system Guard?
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This post provides 5 ways for you.
Is It a Virus?
Then, you may wonder whether it is a virus.

SgrmBroker.exe is a security service created by Microsoft to ensure the safety of your system.
If not, you’ve got the option to venture to disable it.
If you meet Windows Defender issues, you might block the Periodic Scanning feature to fix them.

This post tells you how to enable/disable Periodic Scanning.
Thus, its recommended to disable System Guard Runtime Monitor Broker Service when you encounter the issue.
How to Disable It?

Now, lets see how to disable System Guard Runtime Monitor on Windows 10.