Device protection in Windows Security - Microsoft Support
Windows Security provides built-in security options to help protect your device from malicious software attacks. To access the features described below, tap the Windows Start button, type windows security, select it from the results, and then select Device security.
Fix problems signing in to the Xbox app - Microsoft Support
On your PC, go to Xbox.com and select Sign in.If there are problems with your account, the instructions will help you solve them. If you can’t go beyond the sign-in screen, select Forgot my password and follow the instructions.
修复 Office 应用程序 - Microsoft 支持
如果Microsoft 365 应用程序（如 Word 或 Excel）无法正常工作，有时重启会解决问题。 如果这不起作用，你可以尝试修复它。
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, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 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 Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, Office 2016, Microsoft 365 for home, 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, InfoPath 2013, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
使用语音键入来说话，而不是在电脑上键入 - Microsoft 支持
通过语音键入，可以通过说话在电脑上输入文本。 语音键入使用由 Azure 语音服务提供支持的联机语音识别。
Microsoft 365 和 Office 2021 之间的区别是什么？
Microsoft 365 是一种订阅服务，可确保你始终拥有最新的 Microsoft 新式生产力工具。 存在针对家庭和个人、中小型企业、大型企业、学校以及非营利组织的 Microsoft 365 计划。
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office.com
Xbox 状态 | Xbox Support
检查 Xbox 服务、游戏和应用是否有任何服务中断。
Устранение неисправностей Bluetooth-подключений в Windows
Устранение неполадок с аксессуарами Bluetooth. Если вы можете включить Bluetooth, но у вас возникают проблемы со связыванием или использованием аксессуара Bluetooth, см. следующие действия, которые помогут вам устранить ...
Troubleshoot Windows Media Player Errors - Microsoft Support
Repair or reset Windows Media Player: If Windows Media Player is not working properly, you can try to repair or reset it to its default settings.To do this, Select Start > Settings > Apps > Installed Apps.. Scroll down and click the three horizontal dots next to Windows Media Player and choose Advanced options, and click the Repair or Reset button. Note that resetting Windows Media Player will ...
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。
向 Microsoft 帐户兑换礼品卡或代码 - Microsoft 支持
如何兑换礼品卡、Xbox 下载代码或令牌. Microsoft 和 Xbox 礼品卡以及下载代码和令牌的工作方式相同：兑换到 Microsoft 帐户后，可以在 Windows 或 Xbox 上将余额用于Microsoft Store 在线商店，并且可以获取最新应用、游戏、电影、电视节目以及 Surface、Xbox 和配件的下载。
Applies To:
Microsoft account dashboard