The installation takes place after downloading the 75MB installation file off the FlightOne website. As soon as you have required the installation file and ran it you are faced with a Wrapper by which you have to either insert your Credit Card details, or if you have a key from a previous purchase. Nonetheless the cost of the product is so small its worth it. Once everything has processed successfully you are now entering the installation process which can take anything between 3-5 minutes depending on your system. Once you have installed Ground Environment Pro the only thing left to do is install the textures.
In my opinion these automatic textures are a waste of time and hard drive space. I much prefer designing my own and tweaking the Contrast and saturation. The default installation inserts a partly cloudy, so when flying with bad weather the ground is too bright. Please note that installing over five sets will take over one hour so make sure that when creating textures that your occupied with something else. Once all of the textures have been created insert the ICAO and go and fly. Of course if you can't be bothered with this (Like Me!) just colourize the textures to your satisfaction then install them permanently. Beware that installing many sets will take up a lot of hard drive space, or even a whole hard drive.