How to use a PivotTable in Excel to calculate, summarize, and analyze your worksheet data to see hidden patterns and trends.

Master the art of Excel formulas with our comprehensive guide. Learn how to perform calculations, manipulate cell contents, and test conditions with ease.

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

Learn more about what background apps are in Windows and how to turn them off when you're not using them.

Learn how to use the Microsoft Wireless Display Adapter with your Surface.

Découvrez comment installer Office 2013 sur PC ou Office pour Mac 2011.

本文介绍如何获取最新版本的 DirectX 以启用系统上的游戏和多媒体应用程序。

Find everything you need to manage your Xbox account, profile, and more.

Export Outlook email, contacts, and calendar to move them to another computer or so that you can make a backup of your information.

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.