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Accepted
MathewC
Asked: 2011-04-28 03:08:04 +0800 CST

How can I query my system via command line to see if a KB patch is installed?

  • 772

I'm looking to find out if a KB is installed via command line.

windows command-line-interface patch-management

6 Answers

  1. Best Answer

    In addition to systeminfo there is also wmic qfe

    Example: 

    wmic qfe get hotfixid | find "KB99999"
wmic qfe | find "KB99999"

    There is also update.exe

    Or from powershell, just adjust it for your needs:

    Get-WmiObject -query 'select * from win32_quickfixengineering' | foreach {$_.hotfixid}
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  2. PowerShell 2.0 contains the get-hotfix cmdlet, which is an easy way to check if a given hotfix is installed on the local computer or a remote computer. An example of the basic syntax is

    get-hotfix -id KB974332
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  3. run "systeminfo" in a CMD window and it will pull back a load of statistics about your system including what patches are installed.

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  4. Some other possibilities: Grep %windir%\Windowsupdate.log for the KB number. Or use reg.exe to export the corresponding install keys.

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  5. wmic qfe list /format:htable>C:\PatchList%Computername%.html

    Above command will give the output in html format.

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  6. As someone asked about using wmic at a PowerShell prompt, just use Select-String (or sls).

    wmic qfe get hotfixid | sls "KB99999"

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