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

Learn how to install, reinstall, or activate Microsoft 365 or Office 2024 on a PC or Mac.

Summary Windows 11, versions 24H2 and 25H2 share a common core operating system with an identical set of system files. Therefore, the new features in Windows 11, version 25H2 are included in the latest monthly quality update for Windows 11, version 24H2 but are in an inactive and dormant state. These new features will remain dormant until they are turned on through the “enablement package ...

激活是一个技术过程，用于将产品密钥或数字权利与设备的硬件配置配对。 这不评估副本本身的真实性，也不保证 Windows 副本是 正版 的。 它只确保产品密钥或数字权利对硬件配置有效。 另一方面，验证是检查关键 Windows 许可文件是否未被损坏、删除或删除，以及是否必须接收某些更新和下载的 ...

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Find out how to submit a request for a refund for a purchase of digital Xbox content.

Xbox Support ... Xbox Support

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

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

注意 Microsoft Authenticator 不适用于 电脑或 Mac，因为验证器应用是出于安全原因为智能手机设计的。 了解详细信息。 Microsoft不再支持超过一年的 Authenticator 版本。 始终使设备保持最新状态。 中国用户应 了解如何在中国下载和使用 Microsoft Authenticator。