Your computer sometimes suddenly becomes very slow, the fan is blowing loudly, and it may be unresponsive even on a new computer.
Don’t worry, you might be encountering a common issue with Windows 10 and Windows 11. You can press the shortcut keys “Ctrl+Shift+Esc” to open the Task Manager and check the background processes.
The Antimalware Service Executable is a Windows Defender security scanning process that primarily provides real-time protection against malware on your computer. By default, it can use up to 50% of CPU resources.
Below are some solutions:
Method 1: Set the maximum CPU usage percentage to 5%
Press the shortcut keys “Win+R” to open the Run dialog, type gpedit.msc to enter the Local Group Policy Editor.
Double-click on “Administrative Templates”.
Double-click on “Windows Components”.
Double-click on “Microsoft Defender Antivirus”.
Double-click on “Scan”.
Double-click on “Specify the maximum percentage of CPU usage during a scan” on the right side.
Click “Enabled”, set the maximum percentage to 5, and then click “OK”.
Method 2: Install third-party security software to take over Microsoft’s security software
Here we recommend “Huorong Security”, which has a simple interface, no ads, no pop-ups, and is free for personal users.
Download the installation package from the official website: https://www.huorong.cn/
Double-click the installation package.
Choose the installation location according to your situation, then click “Fast Installation”.
The main interface of Huorong Security after installation.
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