I pity the fool who doesn't know the answer
How to Use Malicious Software Removal Tool (MRT.exe) in Windows 10
It is normal to question the legitimacy of unknown system files, especially when they consume an abnormally large amount of system resources. If you launch Task Manager and discover that a process called MRT.exe has an unreasonably high CPU usage, you have every reason to be concerned.
In this guide, we'll explain what mrt.exe means and what it does. You'll also learn how to determine if you have a safe copy of the file on your PC.
mrt.exe is the executable file for the Microsoft Windows Malicious Software Removal Tool. You can find this file on any computer running the Windows operating system. Microsoft designed the Malicious Software Removal Tool to periodically scan your computer for popular malware, viruses, and worms.
