Rename your Windows 10 PC - Microsoft Support
Rename your device to make it easier to identify if if you use multiple computers with your Microsoft account.
Check your Microsoft warranty and create service orders
Registering your Microsoft device. Before you can check your warranty or get service, you may need register your Surface or Xbox to your account.
管理与你的 Microsoft 帐户一起使用的设备 - Microsoft 支持
断开设备与 Microsoft Store 的链接. 如果无法从 Microsoft Store 中下载内容，则你可能已达到了设备限制。 通过删除不使用的设备或者不再有权访问的设备来管理你的限制。
Applies To:
Microsoft account dashboard
Microsoft 帐户安全信息和验证码 - Microsoft 支持
了解如何管理 Microsoft 帐户安全信息和排查验证码问题。
Applies To:
Microsoft account dashboard
Transfer Microsoft 365 Family or Personal to a different Microsoft ...
Learn about what to consider when you want to manually transfer a Microsoft 365 Family or Personal subscription from one Microsoft account to another.
Premium features in Outlook.com for Microsoft 365 subscribers
Learn more about premium features in Outlook.com available to Microsoft 365 Home and Microsoft 365 Personal subscribers.
Applies To:
Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Outlook 2013, Outlook.com, Outlook for Android, Outlook for iOS, Outlook for Windows Phone 10, Outlook Mail for Windows 10
Import or export text (.txt or .csv) files - Microsoft Support
To import a text file, you can open the file or import the text file as an external data range. To export a text file, use the Save As command.
Applies To:
Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
What's imported to Microsoft Edge - Microsoft Support
Learn more about what items get imported from Google Chrome and other browsers to Microsoft Edge and how to import Third-Party Passwords to Microsoft Edge.
Windows help and learning
Find help and how-to articles for Windows operating systems, including installation, updates, privacy, security and more.
如何申请 Xbox 数字产品退款 | Xbox Support
详细了解如何为 Xbox 订阅或数字产品申请退款。