Then I performed the Quick Scan (and surely during the scan the CPU consumption jumped), but here's the strange thing: even after the scan was complete the service continued to consume 100% of CPU.

What is Antimalware Service Executable msmpeng.exe & why does it show high Memory, CPU, Disk usage in Windows 11/10? Is it a virus? Find the fix here.

While the Antimalware Service Executable is important for ensuring your security, it has occasionally received criticism for its resource consumption. It can utilize CPU, disk, and memory ...

Microsoft Windows comes with a built-in antivirus – Microsoft Defender Antivirus. It performs a scan of your computer for malware from time to time and its background process is called Antimalware ...

Click OK to apply changes made. Check if Antimalware Service Executable High CPU usage issue still occurs. Method 3: Add Antimalware Service Executable to Windows Defender Exclusion List ...

Method 2: Exclude Antimalware Service Executable from Scans Adding the Antimalware Service Executable to the exclusion list can reduce its CPU usage. Here’s how to do it: ...