Are you sure you want to cancel?” then select “Yes” and press “Activate” again. Now you need to select “Activate” and “Connect Now and activate” after which you need to press “Close” which will prompt another message like “Activation has not been completed.After installation is done you need to restart your AutoDesk Product.And then you need to download as well as install AutoDesk 2015 products and enter the below mentioned serials.First you need to uninstall the previous version of AutoDesk products and disable UAC (Windows 7/8) as well as you need to turn off your internet connection.
Download: Setup | Link Installation Method: