https://blog.faceutil.com/2017/04/06/utilccleaner-2-27-%eb%b2%84%ec%a0%84-%eb%a0%88%ec%a7%80%ec%8a%a4%ed%8a%b8%eb%a6%ac%ec%bf%a0%ed%82%a4%ec%9e%84%ec%8b%9c%ed%8c%8c%ec%9d%bc%ec%bb%b4%ed%93%a8%ed%84%b0-%ed%95%9c%eb%b0%a9/