I do have the Creo 5 Student edition. I already installed it and testet it. Works all fine. But when I insert my school internal configurations that contain a new config.pro file, the program crashes after 5 seconds of loading time. I replaced the original config.pro found under PTC / CREO18.104.22.168 / Common Files / text with my internal school config.pro file.
find problematic config.pro option. Test school config.pro file step by step. Test first half of school config.pro file. In case of success add another part of file. In case of failure remove part of file. This way you will find problematic config.pro option.