I have several .dmg files in my downloads folder. I do not want to remove the applications installed. But is it necessary to keep the .dmg files in the downloads folder or can I go ahead and delete them?
MacBook, OS X Mountain Lion (10.8.3)
Go ahead and delete them.
It is not necessary to keep them. The DMGs are just packages for the installation files, and can be discarded without affecting the system; however, before doing so be sure the DMGs are readily available if you need them again (ie, from the developer). Most are, but in some cases developers may give you a one-time download, etc.
DMGs provide a convenient way to, among other things, ensure distributed programs are not corrupted when transferred to your system.
Are .dmg files necessary to keep after a download?
