nevertheless, the mac method of installing software is actually quite simple and intuitive once you are accustomed to it. Can i remove dmg after ation software from one the process for installing new applications on your mac can be confusing at first because it differs greatly from windows software installation process. dmg files might contain extras in a separate folder within that are not installed when you drag and drop the app. this of course assumes that all content of the container file has been installed. To answer your question (s), generally speaking, yes, you can delete the container file whether it be a.