Screensaver not working can consist of different issues related to screensavers. We recommend using screensavers for Windows 10 from trusted sources so that no damage is done to your computer. If you are using a screensaver from untrusted sources, it can also cause the screensaver issue.
Well, you may experience such an issue because of some change in screensaver settings, a recent Windows update, increased/decreased sleep time of the monitor, or simply because of a damaged mouse. Sometimes, people complain about Windows 10 screensaver not working as expected. Along with protecting your screen, screensavers can also add a fun element to your screen when idle. Some windows users keep a plain black screensaver, while others like to use some animation as their screensaver.
Screensaver protects your monitor from getting burnt when in the idle state.