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 ...

Learn how to use the Gaming Services Repair Tool to troubleshoot installation and update issues with Gaming Services on PC.

Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.

例如，某些 Xbox 订阅可以通过兑换数字代码或礼品卡来延期，最长延期限制如下：

Here are the most likely causes for an unrecognized charge: A Microsoft subscription has recurring billing enabled. Someone you know, such as a family member, bought something with your card. You can now investigate this on the Manage your payments page. A previously declined charge was charged again. A pre-order or split order was shipped. Someone made an in-app purchase from an app, game, or ...

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

Errors CAA2000B, 4usqa, and 49dvs when trying to sign in to classic Outlook and Outlook for Mac

从 2025 年 3 月 19 日开始，不再支持适用于移动设备的 Xbox Game Pass。 获取有关其他设备上的云游戏的详细信息。

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

Get an error message or error code when making a purchase on Xbox? Find out what they mean.