You can resolve problems with Microsoft Authenticator by checking the tips in this article and reviewing some of the known errors.

Get to know your way around Windows 11, from where to search to how to stay organized. Watch the video and read tips about new features.

Learn how to recover files that have been lost, deleted, or accidentally changed.

Learn how to open a shared mailbox in Outlook. Shared mailboxes let a group of users view and send email, and share a calender, and open a contact list from a common mailbox.

In Outlook, the black color theme includes dark mode, which provides a black background (instead of white) for the message window. You can switch to a white background for the message window if you prefer.

分析工具库是安装 Microsoft Office 或 Excel 时可用的 Microsoft Office Excel 加载项程序。

Learn how to add user accounts in Windows 10 and Windows 11. With an account, each person has separate files, browser favorites, and a private desktop.

Microsoft's products and services work best if you use the same language and region across all your devices, and in all of your app and Store settings.

How to lock cells in Excel to protect your data. You can also unlock a range of cells and grant permissions to others to edit.

To create a document, open Word, select a blank document or template, and start typing. Discover professionally designed templates for Microsoft Word.