Sometimes, the screensaver might not be set correctly, or it could be turned off, preventing it from activating.Check Power Settings:Go to Settings > System > Power & battery.Click on "Additional power settings."Select "Change plan settings" for your current power plan.Click on "Change advanced power settings."Expand the "Display" section and ensure that "Turn off display after" is set to a reasonable time that allows the screensaver to activate.If the display is set to turn off too quickly or if power settings are preventing the screensaver from starting, it may not activate as expected.Disable Screen Saver Conflicts:If you have any third-party software that manages screensavers or desktop customization, try disabling or uninstalling it temporarily to see if it resolves the issue.Third-party applications can sometimes conflict with Windows settings, causing the screensaver to malfunction.Check for Running Applications:Certain applications, particularly media players or presentation software, can prevent the screensaver from activating. Close any running applications and see if the screensaver starts working.Some applications can keep the system "active," preventing the screensaver from engaging.Update Graphics Drivers:Outdated or corrupted graphics drivers can affect display functionality, including the screensaver.Right-click on the Start button and select "Device Manager."Expand the "Display adapters" section, right-click your graphics driver, and select "Update driver."Keeping your drivers up to date ensures compatibility with Windows features and can resolve issues related to display settings.Run System File Checker:Open Command Prompt as an administrator by searching for "cmd" in the Start menu, right-clicking it, and selecting "Run as administrator."Type sfc /scannow and press Enter.Wait for the scan to complete and follow any prompts.This tool checks for system file corruption that might be affecting the screensaver functionality.If the problem persists, please let me know, and we can explore further options together. I hope you can resolve this soon and get your screensaver working again!, How to Change Screen Saver Settings in Windows 10 A screen saver is a moving picture or pattern that displays on the screen (s) of your PC after you have not been active on the PC for specified period of time to wait. Screen savers were originally used to save older, monochromatic monitors from damage, but now they are mainly a way to personalize your PC or enhance its security by offering , Screen savers were originally used to save older, monochromatic monitors from damage, but now they are mainly a way to personalize your PC or enhance its security by offering password protection. This tutorial will show you how to enable or disable screen saver for specific or all users in Windows 7, Windows 8, and Windows 10..