N181RV, Welcome aboard! 
We are sorry there is no clear explanation on installation, removal and reinstalling. There are things we don't want EVERYONE to know, so some things are addressed when you have a need to know.
Bryant is correct. When you need our help at MTU, go to the
Support Center and create a Support Ticket. Explain clearly who you are so we can identify you; first, last name, email you ordered with, product and version# you need help with. Then explain your situation and what you want us to do. We will take care of it at our web site so you can install on a new system, if that is your need.
Please understand this is all required because of Internet Theft. We try hard to hide our security from honest folks like you, but if you go beyond installing on 2 computers, you will need our help. We have spent hundreds of thousands of dollars creating the secuity we have, which is one of the best on the Internet... for us and for our users.
We are trying to move to a new level, but we must reconfigure our web site, and that takes a LONG time to do and test before we bring it on-line to be 100% working. Bear with us.
I'm not picking on you, but I need to close this Thread as we are way off topic. If you have more questions, please create a new Thread by clicking the button in the Forum to do that.