Why does antimalware service executable take up so much CPU?

The main reason that antimalware service executable uses too much CPU is that it runs constantly in the background. While running in the background, it actively scans programs and files and carries out the appropriate actions whenever it detects anything malicious.

How do I stop antimalware service executable from using so much CPU?

Open the Task Scheduler on your computer. In the left-pane, navigate to Task Scheduler Library > Microsoft > Windows > Windows Defender. In the right-pane, disable All the 4 Windows Defender Tasks. Once you disable these Tasks, High CPU usage and other problems due to Antimalware should be gone.

Why is Microsoft defender taking up so much CPU?

This issue with MsMpEng.exe taking 100% of the HDD and CPU usually occurs when Windows Defender is scanning the system for malware. The Windows Defender scan is getting stuck on a few files while checking malware. When that is happening, it should be restricted/disabled to bring it back to normal use.

Is it OK to disable antimalware service executable?

It’s completely okay to disable the process and even Microsoft Defender. While it’s built in, you’re not required to use it. Before you do this, though, install an alternative antivirus tool; otherwise, you’re leaving your system vulnerable.

Why does Antimalware Service eat RAM?

In some cases, the high memory usage caused by Antimalware Service Executable typically happens when Windows Defender is running a full scan. You can configure this scan that is run as a scheduled task, to take place at a time when you’re less likely to feel the drain on your CPU.

How do I disable antimalware service executable from using RAM?

How do I disable antimalware service executable from disk?

1. Type Task Scheduler in the Search button. Click to expand “Task Scheduler Library > Microsoft > Windows”.
2. Click “Windows Defender” in Windows.
3. Uncheck “Run with highest privileges”.
4. Uncheck all the items in the Conditions section.

How do I limit Windows Defender CPU usage?

Re: Limit Windows Defender CPU Usage Go to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Scan. Create a new registry DWORD, name it AvgCPULoadFactor and set it to 20 on Decimal base. Reboot the system. See if that helps you!

Does Windows Defender affect performance?

Microsoft Defender placed second to last in the test. It did not perform well in two of the test categories and that resulted in it having a large impact on system performance while these specific tasks were performed on the test system. The benchmark test result places it in the middle of the tested applications.

What happens if I end antimalware service executable?

For users looking for a more permanent solution to disabling the Antimalware Service Executable, you will have to disable Windows Security from the Registry Editor. If you do not have a third-party antivirus installed, disabling Windows Security will leave your system at risk of malicious malware that can damage it.

How do I stop Windows Defender from using so much memory?

Fix #1: Change Windows Defender’s scheduling options For most people, the high memory usage caused by Antimalware Service Executable typically happens when Windows Defender is running a full scan. We can remedy this by scheduling the scans to take place at a time when you’re less likely to feel the drain on your CPU.