How to Domain Join in Windows 7
A domain is a type of computer network commonly found in the workplace. (In geek-speak, it's a collection of computers that's centrally administered and operates under common rules.) Windows 7 Professional and Ultimate come with a handy utility that lets you join domains quickly and securely. Just follow the easy-to-use wizard, which prompts you to enter your network credentials. You will be in business in no time.