Assuming the lines are correct, it's best if you don't install GSX into the simulator folder. The suggested location under C:\Program Files (x86) is perfectly fine, and the only reason to change it is if you don't have enough space on C:, but you should then choose a new folder, rather than install into the sim.
- Uninstall GSX. Reply YES to the question "Do you want to remove the Addon Manager ?"
- Reinstall outside the sim.