Might not make this, run out of activation renewals for rF2, emailed ISI but not sure how long they take to sort it
Last time I emailed them for something I got a response within 24 hours. Next time when you do a re-install, make sure to backup your activations files, that way you won't have that problem in the future.
go to start, type %appdata% is searchoption, than you will see a map called roaming with a map .rfactor. If you backup that folder before you re-install, and place it back in the same place, you never have to re-activate, unless you have significant hardware changes.