Windows 11 System Requirements - Microsoft Support
Learn about Windows 11 minimum system requirements and how to assess your upgrade eligibility.
Get help with Windows activation errors - Microsoft Support
Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.
OneDrive 存储空间套餐（按国家/地区） - Microsoft 支持
联系支持人员 有关 Microsoft 帐户和订阅的帮助，请访问 帐户和计费帮助。. 如需技术支持，请转到联系 Microsoft 支持人员，输入问题并选择“获取帮助”。 如果仍然需要帮助，请选择“联系支持人员”以转至最佳支持选项。 管理员
Applies To:
Office.com, OneDrive (home or personal)
如何更改用户帐户名称 - Microsoft 支持
有关如何更改 Microsoft 帐户上的名称的说明。
Stay protected with Windows Security - Microsoft Support
Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.
如何登入 Hotmail - Microsoft Support
Hotmail 現在為 Outlook.com。 瞭解如何登入以存取您的 Outlook.com、Hotmail、Live 或 MSN 電子郵件帳戶。
Applies To:
Outlook.com
Restore deleted files or folders in OneDrive - Microsoft Support
Learn how to delete and restore files in OneDrive. Recover deleted files or folders from the OneDrive recycle bin.
Applies To:
OneDrive for Business, SharePoint Server Subscription Edition, SharePoint Server 2019, OneDrive (work or school), OneDrive (home or personal), OneDrive (work or school) operated by 21Vianet, OneDrive for Mac, OneDrive for Windows
Product activation for Windows – online & support telephone numbers
Learn how to activate Windows using an internet connection, automated system, or live support advocate.
Account help
Get help for the account you use with Microsoft and learn how to set up, protect and manage your services and subscriptions.
Word help & learning
Get answers to all of your Microsoft Word questions. Find Word help, how-to articles, training videos, tutorials, and more.