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  1. 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. Select dxdiag from the results.

    In the tool, select Save All Information... for an easily shared format.

  2. DirectX診断ツールの使い方(dxdiagコマンド) - PC設定のカルマ

  3. Windows 10/11 で dxdiag.exe を開いて実行します - MiniTool

  4. DirectX 診断ツール - PC講座

  5. 5 Ways to Open the DirectX Diagnostic Tool on Windows 11

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