Windows 10 screensaver won’t start anymore: If your screensaver stopped working and won’t ever start, then check the screen saver settings and make sure it’s enabled.Windows 10 screensaver fails to activate: This problem might occur if your screensaver isn’t configured properly.Let’s have a look at some of the potential screensaver issues that you can encounter on Windows 10 machine: Solution 7: Using a Clean Mouse Sensor and Mouse Pad Common Windows 10 Screensaver Problems: