This article explains the diagnostic data collected by Microsoft 365 applications, what that data contains, and why it is collected.

Learn how Outlook helps to prevent duplicate contacts and how to remove any duplicates that occur.

Set up the Microsoft Authenticator app from the Security info page. Depending on your organization’s settings, you might be able to use an authentication app as one of your security info methods.

Learn how to reactivate your account if your OneDrive has been blocked.

Learn how to use the Activation troubleshooter to resolve common activation issues in Windows.

Data Execution Prevention (DEP) is a technology built into Windows that helps protect you from malicious code launching from areas of memory that have been designated as for data only.

Learn what’s new in the latest Windows RT update, including new Start menu options for Surface RT and Surface 2.

Discover a range of OneNote video training courses designed to enhance your note-taking and organizational skills on Microsoft Support.

In PowerPoint, learn how to troubleshoot Designer if you don't see the Designer button, no suggestions are offered, or the button is grayed out.

Check for updates in the Phone Link by opening Settings > About > Check for updates.Install any pending updates to make sure your content stays up-to-date. You may also need to check for updates in the Link to Windows app on your Android device.