How to remove calendar notifications from Windows 10 lock screen
This tutorial will show you step by step how to remove calendar notifications (reminders) from the Windows 10 lock screen (e.g., birthdays, holidays, events, etc.).
Steps
1. Open Settings.

2. Click on Personalization.
3. Click on Lock screen (left side).

4. Under Choose an app to show detailed status, you click on the calendar icon.

5. Click on None.

6. Close Settings.
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