Find out how to change the color of the Start menu, taskbar, and action center with dark and custom mode personalization settings.

How to access and change the privacy settings in Windows 10 and 11.

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.

Add or edit hyperlinks to web sites, local files, email messages, or anchor points in your document.

How to use the SUMIFS function in Excel, one of Excel’s math and trig functions, to add arguments that meet multiple criteria.

Recover a corrupted workbook manually when Excel can't start File Recovery mode automatically and learn about saving backup and recovery files to prevent losing your work.

Combine several files into a single compressed folder to save storage space or to share them more easily.

Firewall & network protection in Windows Security lets you view the status of Microsoft Defender Firewall and see what networks your device is connected to.

Learn how to join a Microsoft Teams meeting if you don't have an account. Join a Teams meeting as a guest in the Windows app or on the web.

Translate all or part of your document into another language.