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Activate Windows - Microsoft Support
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:
- Microsoft
了解如何向图表添加图例、检索缺少的图例以及调整其设置。 在 Excel 中添加、编辑或删除图表图例。
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016, Excel 2013
Windows - Microsoft
了解文件扩展名是什么、Windows 中有哪些常见的扩展名,以及如何在“文件资源管理器”中查看它们。
Закрепление приложений и папок на панели задач или рабочем столе
Закрепление приложений на панели задач. Нажмите кнопку Начните , прокрутите список до приложения, которое вы хотите закрепить, а затем нажмите и удерживайте (или щелкните правой кнопкой мыши) приложение.
OneDrive - Microsoft
OneDrive 内置在某些版本的 Windows 中,并且无法卸载。 但是可将其隐藏并停止同步过程,使其保持隐藏状态。 为此,请关闭所有 OneDrive 设置并从“文件资源管理器”中删除 OneDrive 文件夹。
Applies To: OneDrive for Business, SharePoint Server Subscription Edition, SharePoint Server 2019, SharePoint in Microsoft 365, Office for business, Microsoft 365 admin, OneDrive (work or school), Office.com, OneDrive (home or personal), OneDrive (work or school) operated by 21Vianet, OneDrive for Mac, OneDrive for Windows, SharePoint admin center, SharePoint in Microsoft 365 Small Business, SharePoint operated by 21Vianet
Xbox 360 | Xbox Support
如果 Xbox 360 系统更新失败,请查找与 Xbox 主机系统更新相关的错误代码的故障排除步骤。
OneDrive - Microsoft
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: OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows
| Xbox Support
了解 Xbox 主机、系统要求和网络以及获取疑难解答帮助。
Install the Windows 8.1 Update (KB 2919355) - Microsoft Support
Windows 8.1 Update and Windows RT 8.1 Update (also known as KB 2919355) include improvements that make your favorite apps and settings easier to find and use, provide more familiar mouse and keyboard options, and update security and performance.Here’s what you need to know about installing this important update. Check to see if it’s already installed
使 IF - Microsoft
有些时候,你需要检查单元格是否为空白,通常是因为你可能不希望公式没有输入值就显示结果。 此情况下,将 IF 与 ISBLANK 函数搭配使用: =IF(ISBLANK(D2),"Blank","Not Blank")
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016