Notes: If you don't see the security key option, it's possible that your organization doesn't allow you to use this option for verification. In this case, you'll need to choose another method or contact your organization's help desk for more assistance. Before you can register a security key, you must have at least one additional security verification method registered.

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 ...

Learn how to manage the online safety and privacy settings on the Xbox console for you and every member of your family group.

Gold 会员专享游戏是一项 Xbox 计划，用于向 Xbox Live Gold（现为 Game Pass Essential）成员提供免费的 Xbox 游戏。

You can often view a protected file by simply opening it. For example, you might double-click an attachment in an email message, a document in File Explorer, or a link to a file and be able to open the protected file. If you are trying to open a protected file that has a .pfile name extension, like a .ppng, you will need to use the Microsoft Purview Information Protection viewer or the Azure ...

Find out how to fix network connectivity problems when using Xbox multiplayer and chat features on Windows 10/11.

Learn how to identify and open encrypted and protected emails no matter what email client you're using.

Microsoft Authenticator is a free app that helps you sign in to all your accounts without using a password - just use a fingerprint, face recognition, or a PIN. You can use Authenticator to sign in to your Microsoft personal, work, school or other accounts.

如何获取 Microsoft 365 Microsoft 365 是一项订阅服务，可确保始终拥有来自 Microsoft 的 365 个应用Microsoft。 使用 Microsoft 365 家庭版 或 Microsoft 365 高级版 ，可以与最多五个人共享订阅，在所有设备上安装 Microsoft 365，并同时登录到 5 个。 这意味着，无论身在何处、使用何种设备，无论是电脑、Mac、平板电脑 ...

Learn how to use encryption and other security settings to protect messages sent from Outlook.