If you want to continue to use Vue 4, leave it, if not, you can delete it. There may be reasons to keep it, because some objects created before Vue 4 (also from th efree stuff here and on other sites) cannot be read in Vue 4 Pro? They first needs to be opened and then saved under a new name in Vue 4, befor eyou can use them in Vu e4 pro. So, maybe keep it if it is not disturbing:-) "Can I still move my old scenes,objects plants etc from Vue4 and Vue Pro to another drive Yes, but I think you have done that already:-)