Copying PC games

I apologise for my ignorance and probably sounding so vague, but I’m really stuck as I’m new to this lark. I’ve downloaded a PC game and ended up with all the files on my PC. I’ve installed the game and tried to run it but it keeps asking me to ‘insert disc 1 into drive’. Now I know this is the game data, but where do I burn this information from onto a disc ? Which is the file I use ?

what game is it/what protection does it have?

if it’s a commercially distributed copyrighted game then downloading it for free is illegal.

if you downloaded and paid for it from a distributor’s site there should be insturcctions on teh website for installing and playing the game.

all im going to say is that you need a ‘crack’.

Are they ISO files or what?