Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

Advanced email security. As a Microsoft 365 subscriber, you get enhanced security tools that help protect your inbox from phishing and malware.

断开设备与 Microsoft Store 的链接. 如果无法从 Microsoft Store 中下载内容，则你可能已达到了设备限制。 通过删除不使用的设备或者不再有权访问的设备来管理你的限制。

Creating an online account usually involves entering your information into a form containing multiple fields, such as name, email address, date of birth, password, and more.

尚未运行 Windows 11？ 请参阅激活 Windows或激活 Windows 7 或 Windows 8.1。. 尝试“激活疑难解答” 如果运行的是 Windows 11，并且最近更换了重要的硬件（如更换主板）或重新安装了 Windows，则“激活疑难解答”有可能帮助重新激活 Windows。

关闭Microsoft帐户意味着你将无法使用它登录到任何Microsoft产品或服务，包括 Outlook.com 或 Hotmail、OneDrive、Xbox、Skype、Office 或 Microsoft 365、Rewards 和 Microsoft 认证。

Get help with your questions about Microsoft Teams from our how-to articles, tutorials, and support content.

中国的身份验证方法. 中国仅提供有限的身份验证方法。 用户可以将 Authenticator 设置为在其设备上接收可用于验证其身份的验证码，而不是使用推送通知进行双重验证。

在 Outlook 状态栏上，如果看到 “已断开连接”、“ 脱机工作”或 “正在尝试连接...”，则Outlook 无法访问电子邮件服务器来发送邮件。. 若要解决此问题，请在功能区上选择“ 发送/接收”选项卡，然后在“首选项”组中，选择“脱机工作”，在脱机模式和联机模式之间切换。

Tip: If you believe someone has acquired your payment info, contact your bank or your payment provider to prevent more charges. Tell them your credit card has been stolen or compromised - If you only dispute the charges, there's nothing to prevent the fraudulent charges from happening again.