Hotmail is now Outlook.com To sign in to Hotmail, you'll need your Microsoft account username and password. Sign in at outlook.live.com

Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

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

Get help with product key errors, or geographical region errors, when you redeem a new Office product key on Office.com/setup.

Use your Microsoft account to sign in to Microsoft services like Windows, Microsoft 365, OneDrive, Skype, Outlook, and Xbox Live.

If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can download and install Office, or you can renew your Microsoft 365 subscription. Having problems with your product key?

Outlook 网页版 是组织使用的基于 Web 的 Outlook 版本，用于通过 Web 浏览器访问与工作或学校帐户关联的电子邮件、日历和联系人。 你的工作或学校帐户通常由组织中的某人分配给你。

Learn how to create installation media for installing or reinstalling Windows.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.