If you've tried all of these steps and your screensaver still refuses to cooperate, it might be time to consider a system restore or seeking further assistance from a tech-savvy friend or professional.
A dirty optical mouse or stuck keyboard key can register movement and reset the idle timer.
In conclusion, the "why is my screen saver not working" conundrum can be a frustrating and complex issue. By following the troubleshooting steps outlined above, you should be able to identify and resolve the root cause of the problem. To recap:
Screen savers only start when the computer is . If your PC goes to sleep or turns off the display first, the screen saver won’t appear.