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 ...

若要安裝或重新安裝 Office. 如果您在 www.office.com/setup 或 Microsoft365.com/setup 上輸入您的產品金鑰卻看到此產品金鑰已被使用的 ...

More help If you're using a work or school account and couldn't install classic Outlook following the steps above, contact the IT admin in your organization for assistance.

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

If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can download and install Office, or you can renew your Microsoft 365 subscription. Having problems with your product key?

This article has guidance for: Organizations with IT-managed Windows devices and updates.

如何激活预安装在新 Windows 10 计算机上的 Office 或使用新的产品密钥。

OneNote is a versatile digital notebook that allows you to capture thoughts, ideas, and to-dos, and sync them across all your devices. As part of the Office family, OneNote offers a familiar interface and integrates seamlessly with other Microsoft Office applications. Availability OneNote is available on multiple platforms: Windows Mac iPad iPhone Android Web Want more than OneNote? Try ...

Get support, help, and learning resources for Microsoft 365. Organize your life, expand your creativity, and protect what’s important with Microsoft 365.

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