重置或恢复丢失的 Microsoft 帐户密码 | Xbox Support
在“我们需要验证你的身份”屏幕上，选择用于接收你的代码的安全联系方法（电子邮件地址或电话号码）。选择列出的选项以打开你为帐户设置的所有选项的下拉列表。 按照用于完成联系人电子邮件地址或电话号码的说明执行，然后选择“发送代码”。 在手机、电子邮件或验证器应用中检查安全 ...
Windows 帮助和学习
查找有关 Windows 操作系统的帮助和操作方法文章。 获取对 Windows 的支持，并了解安装、更新、隐私、安全等方面的信息。
解决游戏或应用下载缓慢的问题 | Xbox Support
滚动到“安装…”< 要下载的游戏名称 >。 转到“我的游戏和应用”>“管理”>“队列”，并记下显示的正在安装游戏或应用的下载速度。这表示当前的下载速度。如果看到速度缓慢（例如，每秒小于 1 兆位），则可能需要很长时间才能完成下载。
在 Microsoft Edge 中查看 Cookie - Microsoft 支持
获取有关如何在 Microsoft Edge 中查看 Cookie 的步骤。
将 Windows 家庭版升级到 Windows 专业版 - Microsoft 支持
了解如何从 Windows 10 家庭版升级到 Windows 10 专业版或从 Windows 11 家庭版升级到 Windows 11 专业版，包括如何使用有效产品密钥或 Microsoft Store。
Office Help & Training
We would like to show you a description here but the site won’t allow us.
Improve accessibility with the Accessibility Checker
Apply recommended actions. In the Accessibility pane, you'll see a list of errors and warnings, with how-to-fix recommendations for each.. To quickly correct the issues, apply one of the recommended actions. For more information on how the findings are categorized, see Rules for the Accessibility Checker. In the Accessibility pane, select an issue under Warnings or Errors.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, OneNote for Microsoft 365, Visio Plan 2, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, OneNote for Microsoft 365 for Mac, Excel for the web, Word for the web, OneNote for the web, PowerPoint for the web, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Visio Professional 2021, Visio Standard 2021, OneNote 2021, Excel 2021 for Mac, Word 2021 for Mac, Outlook 2021 for Mac, PowerPoint 2021 for Mac, OneNote 2021 for Mac, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Visio Professional 2019, Visio Standard 2019, Excel 2019 for Mac, Word 2019 for Mac, Outlook 2019 for Mac, PowerPoint 2019 for Mac, OneNote 2019 for Mac, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, OneNote 2016, Visio Professional 2016, Visio Standard 2016, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin
了解为什么你的帐户被禁止或暂停访问 Xbox Live - Microsoft 支持
如果你的行为违反了 Microsoft 服务协议，你的帐户可能会被 Xbox Live 策略与执行团队暂停；在极端情况下，你的设备也可能被禁止。 有关详细信息，请参阅 Microsoft 适用于 Xbox Live 客户的行为准则。. 详细了解 Xbox Live 策略和你的帐户，如何提交案例审查，以及通过哪些措施可以继续游戏。
Windows 7 support ended on January 14, 2020
The Windows 10 free upgrade offer ended on July 29, 2016. To upgrade to Windows 10, you will need to have a compatible PC and purchase a full version of the software.We recommend that you don’t install Windows 10 on an older device, as some Windows 7 devices are not compatible with Windows 10 or could experience reduced feature availability.
Microsoft Support
Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.