How do I diagnose basic problems with DirectX?
https://answers.microsoft.com/en-us/windows/forum/all/how-do-i-diagnose-basic-problems-with-directx/1f0a2918-62af-4565-93d8-1203d85f6dd3
WEB1. Open Screen Resolution by clicking the Start button, clicking Control Panel, and then, under Appearance and Personalization, clicking Adjust screen resolution. 2. Click Advanced settings. 3. Click the Troubleshoot tab, and then click Change settings. 4. Move the Hardware Acceleration slider to Full.
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