The first method: Click the "Start" option, and then click the "Control Panel" option in the right column of the menu bar to enter the "Control Panel" menu; In the control panel menu bar, select the program button option; In the "Programs and Functions" in the left column, you can click to view all installed patch updates; The interface that appears is all system patch updates that have been installed historically.

First, press the "win+R" key combination on the keyboard to activate the "run" program.

The second method: enter "cmd" in the "run" program. Then press "Enter".

In the pop-up command prompt, enter "systeminfo" and press "Enter".

Wait for the cmd program to run for some time.

According to the information fed back by the system, the patch file installed on this machine