https://forums.autodesk.com/t5/installation-licensing-forum/acad-lt-15-free-trial-wont-run/m-p/5504852#M148058 It depends if you are planning to purchase a perpetual license or desktop subscription.<BR /><BR />With the former, you'll need to also purchase maintenance subscription.<BR />With the latter, you can choose between basic and advanced support.<BR /><BR />These options will give you the ability to submit questions directly to the Autodesk Support Staff.<BR /><BR />See: <A href="http://www.autodesk.com/store/autocad-lt" target="_blank">http://www.autodesk.com/store/autocad-lt</A><BR /><BR /><BR /><BR />Now back to your issue. What O/S are you running? Were there any install errors or issues? There should be an install log in the %temp% folder. Can you zip and upload that?<BR /><BR /> Thu, 12 Feb 2015 14:27:20 GMT rkmcswain 2015-02-12T14:27:20Z