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How Can I Detect the Windows OS Version in .NET?

Identifying Your Windows Version with .NET

Problem: How do we reliably determine the specific version of the Windows operating system within a .NET application?

Solution:

The System.Environment.OSVersion property offers a straightforward approach to identifying the Windows OS version. While effective for distinguishing major releases, it may not provide granular detail for all versions.

The OSVersion property comprises three key components:

PlatformID Major Version Minor Version Corresponding Windows Versions
Win32Windows 4 0 Windows 95
Win32Windows 4 10 Windows 98
Win32Windows 4 90 Windows Me
Win32NT 4 0 Windows NT 4.0
Win32NT 5 0 Windows 2000
Win32NT 5 1 Windows XP
Win32NT 5 2 Windows Server 2003
Win32NT 6 0 Windows Vista, Windows Server 2008
Win32NT 6 1 Windows 7, Windows Server 2008 R2
Win32NT 6 2 Windows 8
Win32NT 6 3 Windows 8.1
Win32NT 10 0 Windows 10

Important Considerations:

  • Enhanced Precision: For precise identification of Windows releases beyond the major versions listed above, consider employing a dedicated third-party library.
  • Manifest Impact: The accuracy of System.Environment.OSVersion can be influenced by your application's manifest file. Explicitly defining compatibility with Windows 8.1 and Windows 10 in your manifest ensures reliable results.
  • .NET 5.0 and Beyond: In .NET 5.0 and subsequent versions, System.Environment.OSVersion delivers consistently accurate OS version information.

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