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How to Turn On Night Light in Windows 11

Reduce blue-toned screen light during selected hours.

Quick Answer

Open Settings → System → Display → Night light and turn it on or schedule it.

Step by Step

  1. Save any open work before making changes that could close programs or restart Windows.
  2. Open Settings → System → Display → Night light and turn it on or schedule it.
  3. Test the result before making additional changes.
  4. If the problem remains, note any exact error message before restarting or changing more settings.

If That Doesn't Work

  • Windows menus can vary slightly by edition and update level.
  • Avoid registry edits, third-party cleanup utilities, or disabling security features for ordinary troubleshooting unless there is a specific verified reason.