Hi Query King,

To check installed patches in Windows 7

go to Control Panel > Windows Update > "View update history" (Left hand side in window).

or

go to Control Panel > Program and Features > "View Installed Updates" (Left hand side in window).

or

go to Start > Run > CMD and type "wmic qfe get hotfixid" and press "Enter". you will find all the installed update list there.

Hi,

Ganga's point is also good! You can also try below:

Open CMD, and type : wmic qfe list full /format:htable >C:\asd\hotfixes.htm

Here asd is file and where want to save(Location):
This command creates an HTM list with the installed patches of Microsoft Windows.
Go to the path C:\Temp
and find the file Hotfixes.htm.