When you enable an add-in, it adds custom commands and new features to Microsoft 365 programs that help increase your productivity. Because add-ins can be used by attackers to do harm to your computer, you can use add-in security settings to help protect yourself.

Use an add-in while composing a message. Create a new message or reply to an existing one. From the ribbon, select the Message tab, then choose the add-in you want to use. If the add-in doesn’t appear in the ribbon, select Apps to view your installed add-ins.

Use the Office offline installer to install Office 2016 or Office 2013 if you don't have an active Internet connection or you're having problems with slow speed or unreliable connections.

You can manage all of your Microsoft subscriptions in your Microsoft account dashboard. Select each subscription to change when and how you pay, or to see order history & receipts. Choose your account type.

Change from a 32-bit version to a 64-bit version or vice versa. Activate Windows. Fix Bluetooth problems in Windows. Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

The Xbox Insider Program was built for you! On PC, Xbox console, or mobile, you can get early access to new games and features, join playtests with our developer partners, and provide valuable feedback to help shape the Xbox experience.

Outlook 网页版 适用于 Exchange Server 2016 的 Outlook 网页版. 如果要表达对收到的电子邮件的支持或满意度，无需输入文字答复，只需单击“ 赞 ”按钮即可。. 还可以将鼠标悬停在“ 赞 ”按钮上方，查看为该电子邮件点赞的其他人。.

SharePoint is a browser-based app that you connect to through your web browser, like so: Go to office.com, and sign in to your work or school account. In the upper left corner of the window, select the app launcher > All apps > SharePoint.

Open Microsoft Edge and select Settings and more . Select Favorites . In the Favorites window, select More options , and then select Import favorites. In the Import from menu, choose whether you want to import your favorites from Internet Explorer, Google Chrome, or Mozilla Firefox.

Keyboard shortcuts are keys or combinations of keys that provide an alternate way to do something you'd typically do with a mouse. Here’s the list for the new Microsoft Edge and Microsoft Edge for Mac. Learn how to use the keyboard to navigate in Microsoft Edge.