The Microsoft Genuine Advantage Diagnostic Tool (MGADiag) is a free standalone utility designed to check the legitimacy of your Windows operating system and Office components. Primarily used for legacy environments like Windows 7, Windows Vista, and Windows XP, it analyzes validation files, system configurations, and product keys to troubleshoot “non-genuine” or counterfeiting notifications. System Requirements & Compatibility Supported OS: Windows 7, Windows Vista, and Windows XP.
Modern Windows (Windows 8.1, 10, 11): MGADiag does not work on modern operating systems. Instead, these newer platforms utilize the built-in Licensingdiag.exe tool via Command Prompt to generate licensing reports. Step-by-Step Instructions to Use MGADiag
If you are diagnosing a legacy system, follow these steps to run the utility and pull your system report: Microsoft Learn Microsoft Genuine Advantage Diagnostics Tool
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