How do I set up the computer to ask if I really want to move a folder, files,
etc. Recently my hand brushed across the keyboard as I was clicking the
mouse to move up one file and it started moving all the files in a folder to
a different folder.

I also have trouble with accidently moving files on top of one another.
Surely there is some setting to avoid this from happening. I've never had
this do this to me before we got the new computers. Please advise.