code: def get_nt_system_uid():
      
      try:
          import _winreg as winreg
      except ImportError:
          import winreg
      lm = winreg.ConnectRegistry(None, winreg.HKEY_LOCAL_MACHINE)
      try:
          key = winreg.OpenKey(lm, r"Software\Microsoft\Cryptography")
          try:
              return winreg.QueryValueEx(key, "MachineGuid")[0]
          finally:
              key.Close()
      finally:
          lm.Close()
docs: Get the MachineGuid from
      HKEY_LOCAL_MACHINE\Software\Microsoft\Cryptography\MachineGuid