I downloaded a win 7 OS as an iso file from a website.this site did not require a product key even though I have one. after the file downloaded and the windows burn dialog opened immediately following. I burned the dvd, verified it. I now have a fresh perfect bootable OS for emergency use. it should be faster than using the recovery cd set, and just as easy as the recovery partition on c drive. if i want to burn another copy where is the downloaded iso file saved? folder, which screen, ect? how would I find it? how would I reopen the burner app to make another copy? or do I have to go back to the same website and do the process again?