Note: The Not a value option in the field list refers to fields that are not normally summed or averaged.For example, you wouldn't sum the years displayed, but you might sum the values of the years displayed. If used with another field that is summed or averaged, Not a value works like a row label, but if used by itself, Not a value counts unique values of the selected field.

Windows 10 updates provide the latest features and security improvements to help keep your PC more current and more secure. Before the installation process starts, Windows checks to make sure there’s enough storage space on your device for the installation process and for these new features and security improvements.

Tip: If you encounter a problem on your Windows device, pressing the Windows logo key + F takes a screenshot, then opens the Feedback Hub app and automatically uploads the screenshot to the Feedback tab. Follow the on-screen instructions to detail the problem you've encountered.

Discover the latest updates for Windows 10, including improvements and fixes, known issues, and guidance on how to get the update.

与拥有手机、笔记本电脑或平板电脑的好友共享照片、视频或其他类型文件。 确保希望共享的其他设备已与你的电脑配对、已打开并且可以接收文件。了解如何配对

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

Make the everyday easier with Windows 11. When there's a lot to do, Windows 11 helps you get it done. With intuitive navigation and new multitasking tools, it brings you the performance you want and the security you need.

To increase security and performance, Windows 11 in S mode only runs apps from the Microsoft Store. If you want to install an app that isn't available in the Microsoft Store, or if you have Windows 10 Pro, Enterprise, or Education and want to upgrade to Windows 11, you'll need to permanently switch out of S mode.

Узнайте, как использовать функции панели задач в Windows 11. Скрытие панели задач, закрепление приложения, изменение расположения и другие параметры панели задач.

If you select multiple files or folders and then select Download from Microsoft OneDrive, SharePoint in Microsoft 365, or from SharePoint Server Subscription Edition, your browser will start downloading a .zip file containing all the files and folders you selected. If you're in a folder and you select Download without selecting any files or folders, your browser will begin downloading all ...