again, please read the entire post.  I am not on the current version of desktop, it is Mac 2019.  there is a difference between a back up to restore from any portable back up. I need something that if I need to put it on a different computer that I can have a complete version. I had this problem quite a few years ago and had to pay a lot of money to get someone to downgrade my operating system back what it used to be with my Mac. The regular backup will not do this