In the right-pane, disable All the 4 Windows Defender Tasks. In the left-pane, navigate to Task Scheduler Library > Microsoft > Windows > Windows Defender. Open the Task Scheduler on your computer.Ģ. Disable Scheduled Tasksĭisabling Windows Defender scheduled tasks is another way to reduce Antimalware activity on your computer.ġ. Your computer will enable Real Time protection, the next time you login to your computer. Note: This method disables Windows Defender for a temporary period. On the next screen, scroll down and click on Manage Settings option, located under “Virus & threat protection settings”.ģ. On the next screen, turn OFF Real-Time Protection.

In the right-pane, scroll down and click on Virus & threat protection.Ģ. Go to Settings > Update & security > click on Windows Security in the left-pane. High CPU, RAM and Disk usage by Antimalware service executable is usually caused by the Real Time Protection feature in Windows Security.ġ. If your computer is constantly slowing down or freezing due to Antimalware Service Executable, you should be able to fix the problem using the following methods. Once the background security tasks are completed, your computer should return back to normal and allocate all the resources for Apps and programs running on your computer.

In general, Antimalware Service can take up to 50% RAM, while Windows Security is performing a real time scan, full system scan or updating virus definitions on your computer.

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