Take the disc 1 insert and let it come up on the screen the RUN. It's going to take quite awhile as it's loading 20,000 plus airports and flight paths vectors etc, once that's done it will tell you insert disc 2, follow the onscree. BUT when it says insert disc 2 do not click ok until you've removed disc 2 and placed disc two in the drive. Then hit ok and the disc will start. Once that's complete insert the acceleration disc. If you don't have acceleration nothing will be the same as much of the program relys on acceleration. I'd advise you setup with the internet on so you can verify and get the two downloads like sp2 and fspiuc. If you don't get them there will be an issue. If you have the MSFSX GOLD, YOULL BE OK. I'd advise doing the keycode going in when it asks or you won't be able to use the sim in all of it's glory. Once that's done and everything is complete and verified you'll be on your way to a unique sometimes harrowing journey. It's alot easier now with so many sites and this site in particular will have all of the knowledge base you will need.