Accurately getting the running Windows version in C++

Source.cpp

#include <iostream>
#include <windows.h>

// Required for RtlGetVersion()
#pragma comment(lib, "ntdll.lib")

extern "C" {
    NTSYSAPI NTSTATUS NTAPI RtlGetVersion(PRTL_OSVERSIONINFOEXW lpVersionInformation);
}

std::string get_windows_version() {
    std::string windows_version;

    RTL_OSVERSIONINFOEXW osvi;
    ZeroMemory(&osvi, sizeof(osvi));
    osvi.dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW);

    RtlGetVersion(&osvi);

    if (osvi.dwMajorVersion == 10 && osvi.dwMinorVersion == 0 && osvi.dwBuildNumber > 22000)
        windows_version = "Windows 11";
    else if (osvi.dwMajorVersion == 10 && osvi.dwMinorVersion == 0)
        windows_version = "Windows 10";
    else if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 3)
        windows_version = "Windows 8.1";
    else if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 2)
        windows_version = "Windows 8";
    else if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 1)
        windows_version = "Windows 7";
    else if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 0)
        windows_version = "Windows Vista";
    else if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1)
        windows_version = "Windows XP";
    else
        windows_version = "Unknown version";

    SYSTEM_INFO system_info;
    GetNativeSystemInfo(&system_info);

    if (system_info.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64 || system_info.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_IA64)
        windows_version += " (64-bit)";
    else
        windows_version += " (32-bit)";

    return windows_version;
}

int main(int argc, char* argv[]) {
    std::string version = get_windows_version();

    std::cout << version << std::endl;

    return 0;
}