Screen Saver Doesn't Work Windows 11 Patched Online

External devices or apps can send tiny signals that reset the idle timer, preventing the screen saver from launching.

Modern Standby (S0) can interfere. Check if enabled:

: Set the Wait time to something short (e.g., 1 or 2 minutes) for testing.

Windows 11 does not enable screen savers by default, and they are now tucked away in a "legacy" menu.

If none of the above work, the problem is likely hardware-specific (e.g., touchpad driver constantly reporting input) or requires a Windows repair install.