How do you turn this off?
Everytime I install or delete files this dialog pops up.
I don't think you can. OS X needs you to supply admin permissions when installing apps or changing key files.
Shouldn't do it when deleting files unless you are deleting files from where you really shouldn't be or something is screwed up (permissions?)
I get the Dialogue only when installing Applications and I have VMWare installed. Mind you if I want to delete files from where I really shouldn't be I use Terminal!