Like Daz said look in the "my documents" folder and you will see the iracing folder. You can burn that whole folder to a cd, although it does not contain the cars and tracks folder like Daz mention. It does however have your replays, paints and must importantly your setups folder. The main folder in your "program files" folder has the cars and tracks, but I always redownload that thru iracing. Once you have your clean install you can replace the iracing folder in your my documents with the backup that you saved. I think the only thing I had to do afterwards was recali, my wheel, padels and shifter but all other mapped buttons were saved.