Microsoft is modernizing the activation experience for perpetual licenses. Beginning December 3, 2025, the traditional telephone-based product activation automation process has been moved from telephone to online. Customers will instead use the Product Activation Portal: Product Activation Portal The new digital workflow provides a more secure, reliable, and user‑friendly activation ...

查找 Xbox 主机 ID 或设备 ID 只能在“设置”中查找主机 ID。主机 ID 不同于主机序列号。

Learn how to find a Windows product key for activation, and when you'll use a digital license instead.

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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 ...

Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.

Learn how to use and troubleshoot the clipboard in Windows to paste multiple items, pin items, and sync your clipboard to the cloud.

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

With System Restore you can revert your PC's state to a previous point in time. This can be particularly useful when troubleshooting issues caused by recent changes, such as software installations, driver updates, or system settings modifications. By using System Restore, you can undo these changes without affecting your personal files, providing a safe way to resolve problems without losing ...

All kinds of Bluetooth devices can be paired with a Windows device including: Keyboards and mice. Phones. Speakers and headphones. Printers and scanners. Many more types of devices. To pair a Bluetooth device with Windows, the Windows device needs to have Bluetooth. Most Windows devices already have Bluetooth built in. If a Windows device doesn't have Bluetooth, a USB Bluetooth adapter can be ...