Get support for all Office.com apps, including Excel, Word, and PowerPoint, with step-by-step guidance and troubleshooting.

Learn how to tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.

To check activation status in Windows 11, select the Start button, and then select Settings > System and then select Activation .. Your activation status will be listed next to Activation.. Check activation status in Settings. You'll see one of these activation status messages on the Activation page:

本页提供 Microsoft 客服的电话号码。

Browse on the go with the new Microsoft Edge for Android and iOS devices. Microsoft Edge offers better protection and privacy, and can sync your favorites, passwords, and more across your desktop and mobile devices.

“我的帐户”门户通过设置和管理安全信息、管理连接的组织和设备或查看组织使用数据的方式，帮助你管理工作或学校帐户。. 若要登录到工作或学校帐户，请转到 myaccount.microsoft.com 或选择下面的“ 登录 ”。 登录. 另请参阅. 详细了解工作或学校帐户. 登录到 Windows. 登录 Office

Training: Learn how to create a shareable link to make it easy to share files in a document, email, or IM.

Microsoft Rewards has two status tiers: Level 1 and Level 2. Earn and keep Level 2 status by reaching 500 Microsoft Rewards points each month - no matter how you earn points, they all count toward your status.

使用新的 Microsoft Teams，现在可以在 Windows 桌面应用上登录到多个工作、学校和个人帐户。 在组织（包括来宾组织）之间轻松来回切换。 查看和更改各种帐户的通知设置。

解决激活错误. 如果 Microsoft 365 无法激活，其最后会变为未授权，且 Microsoft 365 的所有编辑功能都会被禁用。 Microsoft 可能由于多种原因变为未授权。