You can insert a drop-down list of valid entries (also called a drop-down menu or drop-down box) in Excel to make data entry easier, or to limit entries to certain items that you define.

使用 Windows 设置应用更改桌面背景和颜色。

Choose how you want emails displayed in the message list, such as whether you want emails displayed as individual messages or as conversations.

These steps are the same whether you're adding your first iCloud email account or additional iCloud accounts to Outlook. Select a tab option below for the version of Outlook you're using.

It's easy to attach pictures, files, and other items to your Outlook messages. Outlook keeps track of the documents you’ve recently worked on, whether they're stored on your computer or saved in OneDrive (cloud only).

If Scroll Lock is on, your cursor moves between columns and rows, not cells. Here's how to turn off Scroll Lock.

Learn how to view and delete your browser history and other history in Microsoft Edge.

Microsoft Support offers assistance for Microsoft products, including how-to articles, videos, and training for various software and devices.

You can block messages from specific email addresses or domains from reaching your inbox. When you add an email address or domain to your blocked senders list, Outlook automatically moves messages from that sender to the Junk Email folder.

Help to decide whether you should install the 32-bit Office version or the 64-bit Office version. Which version is right for you depends on how you plan to use Office. Find out about choosing between 32-bit Office and 64-bit Office.