Get the actual Windows version from Kernel32.dll

Windows 8.1 and later pretend to be Windows 8 (legacy/trac#28096 (moved)).

If we want to display the real Windows version, we can use GetFileVersionInfo() to check the version of Kernel32.dll: https://docs.microsoft.com/en-au/windows/desktop/SysInfo/getting-the-system-version

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