Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

To activate using your digital license, you'll need to upgrade to Windows 11 Pro: Save your work and close any open apps.

Notes: Meeting recordings won't capture whiteboards, annotations, shared notes or content shared in the stage view by apps, and also won't include videos or animations embedded in PowerPoint Live presentations.

示例. 如果要使用 SUMPRODUCT 和 创建数组公式，下面是一个 Excel 网页版 工作簿，其数据与本文中使用的不同。. 复制下表中的示例数据，然后将其粘贴进新的 Excel 工作表的 A1 单元格中。 要使公式显示结果，请选中它们，按 F2，然后按 Enter。

DirectX 9.0c 通过安装 DirectX 9.0c 最终用户运行时适用于 Windows XP 和 Windows Server 2003。. 某些应用程序和游戏需要 DirectX 9。 但是，你的计算机包含更新版本的 DirectX。 如果安装并运行需要 DirectX 9 的应用程序或游戏，你可能会收到错误消息“无法启动此程序，因为计算机中丢失 d3dx9_35.dll。

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Note: To upgrade to Windows 11, devices should meet the Windows 11 minimum system requirements.Some Windows 10 features aren't available in Windows 11. System requirements to experience some Windows 11 features and apps will exceed the Windows 11 minimum system requirements.Find Windows 11 specs, features, and computer requirements

In this example, the formula in cell D2 says: IF(C2 = 1, then return Yes, otherwise return No)As you see, the IF function can be used to evaluate both text and values.It can also be used to evaluate errors.You are not limited to only checking if one thing is equal to another and returning a single result, you can also use mathematical operators and perform additional calculations depending on ...

Select your printer from the list and then select Open queue to see a list of what's printing and the upcoming print order.

Training: Watch and learn how to use PowerPoint in Windows. Explore PowerPoint training guides, articles, and how-to videos.