Microsoft prioritizes account security and works to prevent people from signing in without your permission. When we notice a sign-in attempt from a new location or device, we help protect the account by sending you an email message and an SMS alert. If your phone number or email changes, it's important to promptly update the security contact info on the Security basics page so we can work with ...

Find everything you need to manage your Microsoft account, Xbox profile, and more.

使用“共享我的实际姓名”选项，你可以让好友列表中的人知道你的实际姓名并让他们与他们的好友共享该姓名，这样更容易找到 Xbox 上你已经认识的那些人。

Xbox Support 提供有关 Xbox、Game Pass 和账单问题的帮助，并通过社区提供建议和客户服务。

Provides guidance for Windows Server to protect against an L1 terminal fault (LITF) attack.

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

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Learn how to sign in and out of Microsoft Teams Free with a Microsoft account, which you already have if you use Skype, OneDrive, Outlook.com, or Xbox Live.

Check the Xbox services, games, and apps for any service outages.

Join the meeting before it starts to test your setup from the pre-join screen. From there, you can enter the meeting up to 15 minutes before its start time to troubleshoot or see how Teams works. Meeting participants and organizers will be notified when you enter the meeting. To join a Teams meeting without signing into an account: Open the meeting invite and select the link next to Join or ...