The Malicious Software Removal Tool (MSRT) is a utility provided by Microsoft to remove malicious programs from infected systems.MSRT is different from Windows Security as it is designed to run on already infected systems and does not provide real-time protection.To use MSRT on Windows, you can download the portable tool from Microsoft's webpage and run it on your system.The tool offers different scan options (Quick Scan, Full Scan, Customized Scan) and provides a detailed report of scan results.