These files are often posted in tech forums or attached to support emails in order to give support personnel a better idea of the PC the requester is using in case the error is due to a hardware failure or incompatibility.ĭirectX Diagnostic Tool is located in %SystemRoot%\System32. DirectX Diagnostic can save text files with the scan results. DirectX Diagnostic Tool ( DxDiag) is a diagnostics tool used to test DirectX functionality and troubleshoot video- or sound-related hardware problems.
