I was wondering if someone could help me out. Seems a simple thing to do but I am lost. I bought a Pi 3 because I wanted to do retro gaming. I can't seem to get it going. Anything I download I am unable to open or run it. I just get a pop-up asking me to Choose and Application to open an 'unknown' file. Don't know what to do and very frustrating!
closed as unclear what you're asking by joan, techraf, Aurora0001, goldilocks♦ Mar 9 '18 at 15:00
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
I suspect, that you are downloading files to a Windows PC and trying to run them as Windows programs. What you need to do is to create an SDcard for the PI and run the Pi. There is a good guide here https://www.raspberrypi.org/help/noobs-setup/2/ on how to get started with the simplest of methods using the Noobs download to get an operating system onto the Pi. You can either purchase a pre-loaded sdcard with the noobs software or you can download noobs and copy the files to a suitable card. With a noobs card created and a keyboard, mouse and monitor connected to the Pi. Insert the noobs sdcard in the sdcard slot and plug in the power supply - then follow the remainder of the guide linked above to get started with your Pi. Once you understand how that works you can look into more specialised operating system configs like retropie etc...