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。

To pin apps to the taskbar. Select Start , select the arrow next to All apps, right-click the app, then select More > Pin to taskbar.

The new Microsoft Edge will delete your browsing history, cookies, and site data, as well as passwords, addresses, and form data when you close all InPrivate windows. You can open an InPrivate window in different ways: Select and hold (right-click) the Microsoft Edge logo in the taskbar and select New InPrivate window.

More - Quickly get to your Settings , get Help , send feedback , Report a problem , Enable split view mode , view Keyboard Shortcuts , or Sign out .

With PowerPoint for the web you create presentations right in your browser. Create and save your presentations in your OneDrive, and edit and share them online.

For a black screen, use the following keyboard shortcut: Windows logo key + Ctrl + Shift + B.

Training: Watch and learn how to create a PowerPoint presentation, add/format text, and add pictures, shapes, and/or charts.

Choose number of pages to print per sheet: Printing multiple pages on a single sheet of paper is a useful technique to save paper, reduce printing costs, and create compact versions of your documents. The number of pages that can be printed on a single sheet depends on the capabilities of your printer and the printing options you choose (Example: 1, 2, 4, 6, 9 or 16 pages per sheet).

To open the On-Screen Keyboard. Go to Start , then select Settings > Accessibility > Keyboard, and turn on the On-Screen Keyboard toggle. A keyboard that can be used to move around the screen and enter text will appear on the screen. The keyboard will remain on the screen until you close it.

获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。