Thank you Technogeezer for you great explanation. What you said works perfectly. Now I am up and running El Cap. I really needed to have an older MacOS that would allow me to run Quicken 2007 and FileMaker. Thank you again for everyone's help in getting my new computer running an El Cap VM. The problem was the USB settings. I changed the settings from 3.1 to 2.0 and everything is working as it should.
