Win7 How to disable screensaver when playing video

The first step, the keyboard at the same time press the "Win" key + "R" key to open the run, enter gpedit.msc, press ENTER, that is, open the Group Policy Editor.

In the second step, in the Group Policy Editor window, expand User Configuration → Administrative Templates-Windows Components-windows Media Player directory, select the Play option, and in the right column, double-click the "Allow screen saver to run" policy option.

The third step, in the pop-up window, and set it to the disabled state.