AIM 18.2 Magnetics freezes when asked to import geometry
I installed ANSYS AIM 18.2 yesterday, and it's freezing whenever I click on Import New Geometry in any section. So next time I clicked on Define New Geometry, it starts up normally, and in the workspace when I click on Import Geometry in the Geometry box, it freezes again. It freezes specifically at 5 % progress, when it is 'Executing <simulation name>: Model ...'. I believe I have installed it correctly, taking special care to Run As Administrator for setup.exe.
Here are my PC specifications:
Windows 7 Ultimate SP1
Intel i7-3770 @ 3.4 GHz, 64 bit
12 GB Ram
NVIDIA GeForce GT610
Could anyone tell me how to fix this?