key problem with my install ....

Hello, first of all…

Whenever I start it says my trial has expired,

then I press re-activate and then it sais Moving File Failed with access denied, I cancel it.

Then the re-activate thing pops up, I click on the free version and I click ‘start unity’ then it just sais License Expired again!

That would be because you are attempting to outsmart Unity with the same email. You need to re-download with a different email if you want to continue the trial. Uninstall, re-download from the website(with a different email this time), and try again. Also, I recommend using the free version of Unity. If you are not going to buy unity, and its illegal to publish on pro trial, whats the point? Real-time shadows to be used for a school project for thirty day increments at the and of which you have to refresh the entire program? Nope, it just doesn’t seem worth it to me.