According to those reports, it's also not part of Windows' built-in notification system, as most Bing, OneDrive, and Microsoft 365 notifications are; it's an entirely separate executable file ...

Learn how to disable Antimalware Service Executable in Windows 11/10 using Group Policy Editor, Windows Security, and PowerShell.

If MRT.exe or Malicious Removal Tool is showing high Disk and CPU usage on your Windows computer, here are the things you need to do.