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Symptoms. Your Universal Serial Bus (USB) keyboard or mouse may not work after you restart your computer in MS-DOS mode. This problem can occur under either of the following conditions: If USB legacy support is disabled in the basic input/output system (BIOS), or the BIOS does not provide USB legacy support. -or-.

Swipe in from the right edge of the screen, and then tap Search.Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search.Type Command Prompt in the Search box, right-click Command Prompt, and then click Run as administrator.If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.

To find out which version of Windows your device is running, press the Windows logo key key + R, type winver in the Open box, and then select OK. Here’s how to learn more: Select the Start button > Settings > System > About .

Select the product you need help with. We'll show you self-help options first. Additional help is available if you need it, including live chat with a Microsoft specialist. Microsoft 365. Office. Windows. Xbox. Surface devices. Copilot.

Windows 10 Windows 8.1 Windows 7. You can use installation media (a USB flash drive or DVD) to install a new copy of Windows, perform a clean installation, or reinstall Windows. To create installation media, go to the software download website, where you'll find step-by-step instructions.

To download the latest version of Windows SDK for Windows 8, go to the following MSDN website: Windows Software Development Kit (SDK) for Windows 8. Prerequisites. To apply this update, you must be running one of the following operating systems: Windows 8

Windows Media Player 12 has built-in support for many popular audio and video formats. Sync music, videos, and photos, or stream media to your devices so you can enjoy your library anywhere, at home or on the road. For info about the latest version for your system, see Get Windows Media Player.

Open and run DxDiag.exe - Microsoft Support. Windows 10. This tool is used to collect info about devices to help troubleshoot problems with DirectX sound and video. A support person might ask for this info, or you might post it in a forum when you ask for help. In Windows, select Start and enter dxdiag into the search box on the taskbar.

Windows 8.1. Open Windows Update by swiping in from the right edge of the screen (or, if you're using a mouse, pointing to the lower-right corner of the screen and moving the mouse pointer up), select Settings > Change PC settings > Update and recovery > Windows Update. If you want to check for updates manually, select Check now.