Full .NET and Win32/C++: OS version for Windows 8.1 and above (e.g. Windows 10) was not accurately reported in certain circumstances: it was was previously retrieved using WMI counters which could be inaccessible due to security issues. OS versions above Windows 8 are now preferably retrieved using the more reliable Windows API method RtlGetVersion(), only using WMI counters and other means as fallback-mechanisms.