通过 XBOX 获得 奖励 | XBOX Support - support.xbox.com
使用Microsoft帐户，你可以参与免费Microsoft奖励计划，并为已经完成的事情（例如在Microsoft商店购物、在必应上搜索）和 18 岁及以上的玩家使用 XBOX 玩游戏，从而获得积分。 XBOX 奖励 计划为你提供更多赚取积分并兑换丰厚奖励的机会。
Register or unregister your XBOX device | XBOX Support
Learn how to register your XBOX product so that you can request and track repairs, check your warranty service, and buy an extended service plan. There's also info on unregistering and unlinking your device.
Obtain a digital certificate and create a digital signature
About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Word 2024, Word 2021, Word 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Office 2016
激活 Windows | Microsoft Support
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 ...
Protect yourself from tech support scams | Microsoft Support
Learn how to protect your PC, identity, and data from tech support scams.
将产品密钥与 Microsoft 365 配合使用 | Microsoft Support
在许多任务中，你的 Microsoft 帐户可替代产品密钥，例如激活 Microsoft 365 和重新安装 Microsoft 365。 有关 Microsoft 365 产品密钥的常见问题 查看以下部分，确定是否需要 Microsoft 365 产品密钥，并了解密钥的用途（如果已有）。
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Excel 2024, Word 2024, Outlook 2024, PowerPoint 2024, Access 2024, OneNote 2024, Project Standard 2024, Visio Professional 2024, Visio Standard 2024, Office 2024, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Microsoft 365 for home, InfoPath 2013
查找你的 Windows 产品密钥 | Microsoft Support
了解如何查找用于激活的 Windows 产品密钥，以及何时改用数字许可证。
Applies To:
Microsoft account dashboard
Activate Windows | Microsoft Support
Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.
Find your Windows product key | Microsoft Support
Learn how to find a Windows product key for activation, and when you'll use a digital license instead.
Applies To:
Microsoft account dashboard
Sign in to SharePoint | Microsoft Support
Training: Get started with SharePoint in Microsoft 365. At office.com, sign in to SharePoint, then select the SharePoint tile.