

If an infection is found, the tool will display a status report the next time you start your computer. The version of this tool delivered by Windows Update runs on your computer once a month, in the background. To have the newest versions automatically delivered and installed as soon as they are released, set the Automatic Updates feature to Automatic. New versions will be made available through this web page, Windows Update, and the Malicious Software Removal Tool Web site on. Microsoft will release an updated version of this tool on the second Tuesday of each month. To help protect your computer, you should use an anti-virus product. This tool is not a replacement for an anti-virus product.

The tool creates a log file named mrt.log in the %WINDIR%debug folder. When the detection and removal process is complete, the tool displays a report describing the outcome, including which, if any, malicious software was detected and removed. For more information, go to Microsoft Support Lifecycle.The Microsoft Windows Malicious Software Removal Tool checks Windows XP, Windows 2000, and Windows Server 2003 computers for and helps remove infections by specific, prevalent malicious software-including Blaster, Sasser, and Mydoom. Note In compliance with the Microsoft Support Lifecycle policy, MSRT is no longer supported on Windows Vista and older platforms. It also includes information for the administrators and advanced users, including information about supported command-line switches. This article contains information about how the tool differs from an antivirus or antimalware product, how you can download and run the tool, what happens when the tool finds malware, and tool release information. For comprehensive malware detection and removal, consider using Microsoft Safety Scanner. Use this tool to find and remove specific prevalent threats and reverse the changes they have made ( see covered threats). Microsoft generally releases MSRT monthly as part of Windows Update or as the standalone tool. Windows Malicious Software Removal Tool (MSRT) 5.81 helps remove malicious software from computers running Windows 10, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, or Windows Server 2008.
