Learn how to customize the Quick Link menu and other navigation on your SharePoint site.

Get help with Outlook for Windows, the Outlook app, Outlook.com, and more. Find training videos, how-to articles, and Outlook support content

Learn how to sign into your PC with Windows Hello using a PIN, facial recognition, or fingerprint.

Use the XLOOKUP function when you need to find things in a table or a range by row. For example, look up the price of an automotive part by the part number, or find an employee name based on their employee ID. With XLOOKUP, you can look in one column for a search term, and return a result from the same row in another column, regardless of which side the return column is on.

Using Authenticator as a way to sign in. If you have turned on passwordless, two-step, or multi-factor authentication for your account, use the following steps to sign-in:

Discover how to earn Microsoft Rewards points through various activities and redeem them for exciting rewards.

即使已开启其他防火墙，开启 Microsoft Defender 防火墙也很重要。 它保护你免遭未经授权的访问。 若要打开或关闭 Microsoft Defender 防火墙，请执行以下操作：

Provides information for avoiding and reporting Microsoft technical support scams.

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Use create.microsoft.com to find and download free Excel for the web templates. Download free Excel templates for calendars, invoices, budgeting, and more.