Generally, if you bought a physical copy of Windows, the product key should be on a label or card inside the box that Windows came in. If Windows came preinstalled on your PC, the product key should appear on a sticker on your device. If you’ve lost or can’t find the product key, contact the manufacturer. To ensure your product key is ...

Activate Windows using a product key. A product key is a 25-character code, that looks like this: PRODUCT KEY: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX. During installation, you'll be prompted to enter a product key. Or, after installation, to enter the product key, select the Start button, and then select Settings > System > Activation > Update product ...

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

选择“档案和系统”>“设置”>“系统”>“主机信息”。. 你的“主机 ID”是显示列表中的第二个。. 注意 如果正在寻找忘记密码重置尝试的设备 ID，请使用“ Xbox 网络设备 ID ”。. 查找 Xbox 序列号. 你的 Xbox 主机的序列号位于两个位置中：. 在主机背面的标签上 ...

Create Windows 11 installation media. On the Windows 11 software download page , select Create tool now and follow the instructions to install Windows 11. Warning: Microsoft recommends against installing Windows 11 on a device that does not meet the Windows 11 minimum system requirements.

Select Create installation media (USB flash drive, DVD, or ISO file) for another PC, and then select Next. Choose a language, edition, and architecture (64-bit or 32-bit), and then select Next. Select USB flash drive, and then select Next. Follow the steps to create installation media, and then select Finish.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Summary. Windows 10, versions 2004, 20H2, 21H1, 21H2, and 22H2 share a common core operating system with an identical set of system files. Therefore, the new features in Windows 10, version 22H2 are included in the latest monthly quality update for Windows 10, version 2004, 20H2, 21H1, and 21H2 but are in an inactive and dormant state.

获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。

若要以其他语言安装 Microsoft 365 或安装 64 位版本 ，请使用下拉列表查找更多选项。. 选择所需语言和位版本，然后选择“ 安装 ”。. 现在你已准备好安装 Microsoft 365。. 请在下方选择与你要尝试安装的版本对应的选项卡。. Office 2019 或 2016 for PC Office 2016 for Mac ...