![]() ![]() Because MSERT is updated at 10-day intervals, it is preferable to MSRT once Patch Tuesday (or the latest in-house update) has come and gone. The tool is intended for such automatic use, and ages past its freshness date fairly quickly thereafter. Windows PCs subject to regular updates via WU or a company-run substitute will likely get the latest MSRT each time an update cycle runs. Thus, I concur with Microsoft that one should “always download the latest version of before each scan.” I also think this spells a key difference between the two tools. By the third week of the month, a new version of MSERT should be available, whereas MSRT changes only once a month. One major difference between MSRT and MSERT is currency. We recommend that you always download the latest version of this tool before each scan. It reads: Safety Scanner only scans when manually triggered and is available for use 10 days after being downloaded. Further perusal of the Docs page, however, helps to zero on an important difference. Simply download it and run a scan to find malware and try to reverse changes made by identified threats.Ĭareful comparison of the two descriptions shows them to be more alike than different. Microsoft Safety Scanner is a scan tool designed to find and remove malware from Windows computers. Here’s the brief explainer for MSERT.exe from the head of that page: You can read all about it on its Microsoft Docs page, where you can also grab a 32- or 64-bit version of that download. These days, Microsoft calls this scan tool the Microsoft Safety Scanner instead. MSERT, on the other hand, was once an acronym for the Microsoft Emergency Response Tool. Meet the Microsoft Safety Scanner (MSERT.exe) That said, the download page is always there, updated monthly, ready for access. MSRT can be run on its own, but is not used in that way very often. This means that many, if not most, Windows desktops get an obligatory malware check-and-repair run at least once a month. MSRT is generally released monthly as part of Windows Update or as a standalone tool available here for download.įigure 2 features a screencap from Windows 10 showing a fairly recent MSRT release: IDGįigure 2: Notice that the WU download uses the same KB and version numbers as the File Explorer item in Figure 1.Īs part of the normal update drill for most Windows users - except those who get their updates through their organization’s own update servers, on their own calendars - the MSRT gets run every Tuesday as a matter of routine. MSRT finds and removes threats and reverses the changes made by these threats. Here’s how Microsoft describes MSRT on its Download Center page: Windows Malicious Software Removal Tool (MSRT) helps keep Windows computers free from prevalent malware. To remove this tool, delete the executable file (msert.exe by default).įor more information about the Safety Scanner, see the support article on how to troubleshoot problems using Safety Scanner.Invariably, each Patch Tuesday includes an item named Windows Malicious Software Removal Tool, a.k.a. For detailed detection results, view the log at %SYSTEMROOT%\debug\msert.log. Review the scan results displayed on screen.Select the type of scan that you want to run and start the scan.For details, refer to the Microsoft Lifecycle Policy. ![]() Safety Scanner helps remove malicious software from computers running Windows 11, Windows 10, Windows 10 Tech Preview, Windows 8.1, Windows 8, Windows 7, Windows Server 2019, Windows Server 2016, Windows Server Tech Preview, Windows Server 2012 R2, Windows Server 2012, or Windows Server 2008 R2. If you're having difficulties removing malware with these products, you can refer to our help on removing difficult threats. ![]() These antimalware products also provide powerful malware removal capabilities. For real-time protection with automatic updates, use Microsoft Defender Antivirus on Windows 11, Windows 10, and Windows 8 or Microsoft Security Essentials on Windows 7. This tool doesn't replace your antimalware product. Safety Scanner is a portable executable and doesn't appear in the Windows Start menu or as an icon on the desktop. To rerun a scan with the latest anti-malware definitions, download and run Safety Scanner again. Safety Scanner expires 10 days after being downloaded. Microsoft Safety Scanner only scans when manually triggered. The security intelligence update version of the Microsoft Safety Scanner matches the version described in this web page. To learn more, see 2019 SHA-2 Code Signing Support requirement for Windows and WSUS. Your devices must be updated to support SHA-2 in order to run Safety Scanner. Safety Scanner is exclusively SHA-2 signed. ![]()
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