Learn how to join a Microsoft Teams meeting by link, calendar, channel, chat, or by calling in.

OneDrive is your online cloud storage within Microsoft 365. It lets you store your individual work files that you don't want your colleagues to have access to unless you choose to share the files with them.

How to use conditional formatting in Excel to visually explore, analyze, and identify patterns and trends.

Install Office 2007. Insert your Office 2007 CD into the drive. If the setup wizard doesn’t start automatically, navigate to the CD drive and click SETUP.EXE.

If you are having trouble with your microphone features, the following information can help you troubleshoot and resolve issues.

Remote Assistance and Easy Connect let someone you trust take over your Windows 10 PC and fix a problem from wherever they are.

如何将 IF 函数 (与 Excel 中) AND、OR 和 NOT 函数结合使用，以在给定值之间进行逻辑比较。

Learn how to type a letter online using Word for the web. Choose a letter template for online letter writing. Edit, send or print your letter online.

Learn how to reset or change your Microsoft account password. Get help with a forgotten Microsoft account password.

Learn how to improve Windows PC performance if your device is running slowly.