Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.

Use your Microsoft account to sign in to Microsoft services like Windows, Microsoft 365, OneDrive, Skype, Outlook, and Xbox Live.

Get the steps for turning Windows Defender Firewall on or off.

The TEXT function lets you change the way a number appears by applying formatting to it with format codes.It's useful in situations where you want to display numbers in a more readable format, or you want to combine numbers with text or symbols.

Learn how to stop, cancel or pause uploads and downloads in OneDrive.

Find out how Microsoft uses activity history data to provide personalized cross-device experiences and to help improve its products and services.

Leave your Android device in your pocket the next time it rings — pick up the call from your PC instead. Calling requires Bluetooth capability on both your PC and on your Android device, so make sure you have it turned on for both.

Whether you like to apply changes that affect your photo's quality, feel, and look—or you want to add information on top of your photos, the Microsoft Photos app in Windows gives you all kinds of options for getting your photos and videos looking their best.

Learn how to create a OneDrive backup on your PC. Set up OneDrive PC folder backup to access, manage, stop, or fix problems with PC folder backup.

How to sort and organize your Excel data numerically, alphabetically, by priority or format, by date and time, and more.