See how to view the details for signatures and certificates.

Learn how to use mobile operator billing as a payment option to buy Xbox subscriptions, games, and other content.

Send contact information in virtual business card (.vcf) format and save virtual business cards (vCards) in your contacts. The ,vcf format is the Internet standard for sharing contact information.

A popular tactic of criminals is the "fake order" scam. The way it works is that you get a message, usually in email or text, that appears to be a routine confirmation for an order. Of course, you never ordered whatever product or service it's confirming. The message looks common enough, and it says that money will be charged to your credit card or withdrawn from your bank account for the ...

Find out how to resolve your Xbox purchase error when you’re trying to buy something from the Microsoft Store.

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：

添加或邀请组织外部使用 Teams 的人员加入群组聊天 在群组聊天中与最多 250 人聊天。 组织外部的参与者必须使用 Teams 或 Teams 免费版。 开始新的群组聊天并添加参与者 在 Teams 的左侧，选择“ 聊天 ”，然后选择“ 新建聊天 ”以开始新的聊天。 键入要邀请其聊天的人员的电子邮件地址、组或标记 ...

Some Xbox subscriptions can be extended. Find out more about what the limitations are in your country or region.

Microsoft正在对永久许可证的激活体验进行现代化改造。 从 2025 年 12 月 3 日起，传统的基于电话的产品激活自动化过程已从电话转移到在线。 客户将改用产品激活门户： 产品激活门户 新的数字工作流提供更安全、更可靠且用户友好的激活体验，并有助于防止欺诈。 虽然该过程已更新，但脱机激活 ...

学习在 Xbox 上在线兑换充值码后，如何安装游戏和可下载的游戏内容。