This document applies to all windows servers and clients

* for checking the update
Go to start > CMD > run the following command "  wmic qfe list"
** gives you the complete list of installed update on the servers




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If you need a script then find it below
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@echo on
wmic /node: Server name qfe GET description,FixComments,hotfixid,installedby,installedon > %temp%\UpdateList.txt 
notepad %temp%\UpdateList.txt
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note if you need any other output format then  replace the blue marked files to the HTML|CSV