Formerly known as Windows Defender, Microsoft Defender is an antivirus protection program that's included with Windows 10.

This feature ensures your account is safe. You must enter our Windows PIN or use the Security key to authenticate yourself whenever asked. However, follow these suggestions if you feel the prompt is ...

To fix high memory usage by Antimalware Service Executable on Windows 11, try turning off real-time protection, uninstalling pirated apps, scanning for malware, rescheduling Windows Defender scans, or ...