text: By rebooting you probably mean reinstalling OS. No, that doesn't matter. If you purchase a software on-line it comes with the product number which you must enter to make it active. When you purchase it, they send it to you by email and is there for you to reinstall it as many times as you want. Also most of the products sold on-line come in the CD package, but lately it's not that popular because of easy to purchase/use over the Internet.