How To Stop Sharing My Outlook Calendar With Someone

Did a team member leave the project? Are you switching roles? Or do you just need to tighten up security? If your Microsoft Outlook Calendar is currently shared, you need to know the fastest way to revoke or change access permissions immediately to protect your privacy and schedule details! In this critical 2025 security tutorial, I’ll show you the single quickest path to the Calendar Permissions settings, allowing you to instantly select a user and completely remove their viewing access with just one click.