When signing up for installing agreeing to anything read the fine print

If you do not want to receive junk mail or get put on a telemarketer list, look for a small box near the bottom of the page that asks if you want to receive information and offers from other companies. The best sites will have a statement listed that they will not sell your name to other companies (though they may still spam you themselves). Some sites require you to give all your information to get the product. Only fill in required fields that are marked with an *. If the info box does not have an asterisk, it is optional and you can leave it blank.