Comm. License user/upgrade reverted my profile to FREE /cannot add back on computers

Hello all

Can anyone walk me through how to erase the FREE version (that TmVwr thinks I installed) 'completely', and then reinstall so my commercial license can be recognized.  Right now I'm dead in the water as it won't let me connect to desktop or laptop.  I bought this license so I wouldn't have this issue.  The upgrade to 13 completely changed my settings.