How to passively prevent Windows from blanking screen on a locked down Win10?

I have a computer with Windows 10, and I want to make the time until screen goes blank longer than 15 minutes.

Things I've tried:

• Changing the time under screensaver. Worked when setting it lower than 15 minutes, but not higher.

• Changing power settings. Same deal here. Worked for less than 15 minutes but not more.

• Simulating input with script Didn't work because running scripts is disabled.

It's a pretty locked down computer. I cannot install programs and such, except for those approved by the company. I'm using that computer pretty passively, but I want to have it open to see if anyone in my team has written something in Teams. Constantly moving the mouse to prevent it is tedious and breaks concentration.

So is there a way to prevent the screen from going blank?

Solution 1:

Most media players inform Windows that it should stay awake and the screen should stay active. (This is done using SetThreadExecutionState or PowerSetRequest and friends.) After all, you wouldn’t want the screen saver to activate while a movie is playing. Nowadays, browsers are media players, too!

So you can try running a movie, preferably endlessly looped, in one of the media players you have available. If the player is “reasonably dumb”, it should also work when minimized and muted.

Keep in mind that Windows may override the application requests if on battery power.