You might want to move this question to the Administration forum, since the folks there are particularly focused on installation. Use the Move function in the Actions box at the upper right. You could also just ask the question in that forum, but that leaves you with two threads to track and respond to.
Is it possible that the Installer is running in Compatibility mode?
I installed SolidWorks on the Bootcamp partition. It works if I boot directly to Windows. However, it doesn't whenever I launch it using Fusion from Mac OS. I think there might be a license restriction that the software does not work under a virtual machine.