text: import os
  import ctypes
  
  def getHostId():
      sysdrive = os.getenv('SystemDrive') + '\\'
      buf = ctypes.create_string_buffer(64)
      if not ctypes.windll.kernel32.GetVolumeNameForVolumeMountPointA(sysdrive, buf, ctypes.c_uint32(64)):
          return None
      return buf.value
  
  