Update Details
Windows Malicious Software Removal Tool - v5.143 (KB890830)
Last Modified:
7/14/2026
Size:
84.3 MB
UpdateID:
b58b4776-109d-4c15-88e6-7bdea76f3f98
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Details:
Overview
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Package Details
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Description:
After the download, this tool runs one time to check your computer for infection by specific, prevalent malicious software (including Blaster, Sasser, and Mydoom) and helps remove any infection that is found. If an infection is found, the tool will display a status report the next time that you start your computer. A new version of the tool will be offered every month. If you want to manually run the tool on your computer, you can download a copy from the Microsoft Download Center, or you can run an online version from microsoft.com. This tool is not a replacement for an antivirus product. To help protect your computer, you should use an antivirus product.
Architecture:
X86
Classification:
Update Rollups
Supported products:
Windows Server 2008 , Windows 7
Supported languages:
all
MSRC Number:
n/a
MSRC severity:
n/a
KB article numbers:
890830
More information:
https://support.microsoft.com/kb/890830
Support Url:
https://support.microsoft.com/
This update has been replaced by the following updates:
n/a
This update replaces the following updates:
Windows Malicious Software Removal Tool - v5.142 (KB890830)
There are no additional languages to select
Restart behavior:
Can request restart
May request user input:
No
Must be installed exclusively:
Requires network connectivity:
No
Uninstall Notes:
n/a
Uninstall Steps:
n/a
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