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Here’s a script that will check if a windows update exists on a device.  Yes, there are manual ways of finding out by navigating to Control Panel > Programs and Features > View Installed Updates, but sometimes it’s quicker to run a script as opposed to sifting through a list for KB references:

@echo off

for /f %%f in ('wmic qfe get hotfixid ^| find "KB4495590"') do set "KBRESULT=%%f"

IF [%KBRESULT%] == [] (
	echo not installed                    
) else (
	echo installed 


Check If a Windows Update Exists
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