I tried using SysInternals AutoRuns and looking at the Scheduled Tasks but was not able to find where it was being started. So it is definitely installed and being run daily. The update KB890830 is not installed on this computer.Īccording to the C:\Windows\debug\mrt.log, C:\Windows\System32\MRT.exe is being run daily during the "Automatic Maintenance" window defined in the Action Center section of the control panel. We also tried running wusa.exe /uninstall /KB:890830 but it returned the error: All supported 圆4-based versions of Windows Server. All supported 圆4-based versions of Windows 8.1. The Malicious Software Removal Tool (or KB890830) is a Windows malware-protection offering that updates and runs once a month, and proceeds to remove any threats it finds without user confirmation. All supported x86-based versions of Windows 8.1. We've had issues with MRT in the past and want to remove it, but now the script has declined the update and we cannot find anything under the View installed updates section to remove it. The following files are available for download from the Microsoft Download Center.
Microsoft has released Microsoft Windows Malicious Software Removal Tool update KB890830. We have a script that declines KB890830 updates for our on-premise Windows Update Server, but we recently found someone approved one of the monthly updates before the script could run and the Malicious Software Removal Tool (MRT) was installed on all of our servers. By Daisy Follow Last Updated July 12, 2022.
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