If you don't have a desktop PC and the slider doesn't appear or work, try updating the display driver. Select Search on the taskbar, type Device Manager, and then select Device Manager from the list of results.In Device Manager, select Display adapters, then select the display adapter.Press and hold (or right-click) the display adapter name, then select Update driver and follow the instructions.

Look in the Surface app. The easiest way to find which Surface model you have is to use the Surface app. It shows the model name of your Surface device and each Surface accessory.

Training: Watch these videos to help your school, work, or organization use Microsoft Teams to video conference, work remotely, and become proficient using Teams.

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

Learn how to install the latest version of DirectX to enable games and multimedia applications on your system.

Upload captions and transcripts Upload your own WebVTT captions and transcript file by selecting Video settings in the upper right of the web player.Expand the Transcripts and captions section if closed, then select Upload.In the dialog that appears, select the language of the file you’re uploading.

查看你购买的是哪个版本，Windows 10 家庭版或 Windows 10 专业版。 若要查看版本，请选择“ 开始 ”按钮，然后选择 “设置” >“ 更新 & 安全性 > 激活 ”。 在“设置”中检查 Windows 版本. 如果你购买的是 Windows 10 家庭版，将需要再次安装 Windows 10 家庭版。

Notes: Some users won’t see the notification for the first hour after a Windows Update due to their notification settings. (To check this, select Start gt; Settings > System > Notifications > Turn on do not disturb automatically, and see if For the first hour after a Windows feature update is checked.) To change Dynamic Lighting settings before seeing the notification, follow the steps above.

Tips: If you don't see the OneDrive icon, OneDrive might not be running. On a PC, go to Start, type OneDrive in the search box, and then click OneDrive in the search results. You might need to click the Show hidden icons arrow next to the notification area to see the OneDrive icons. On a Mac, use Spotlight to search for OneDrive and open it.

Learn how to open and run DxDiag.exe on Windows to collect device information and troubleshoot DirectX sound and video issues.