Hi, I had originally downloaded the 180 day trial for ArcMap 10.2 for a class. The trial just ended and I have a new activation code for my new class, but I can't seem to find where to type it in without having to uninstall the program and re install it again. When I try to run ArcMap, it keeps telling me "ArcGIS for Desktop Advanced is not authorized for use. Access the ArcGIS Administrator. Click on the product folder on the left (e.g. Desktop), then select the Single Use product you will be using and click the Authorize Now button, If you have already received an authorization file from ESRI, choose the third option 'I have received an authorization file from ESRI and am now ready to finish the authorization process'".
It does not even let me access the ArcGIS Administrator, and was wondering if anyone had any ideas!