Jun 01, · HELP!!! Cannot Join Computer Back to Domain on Windows 7. by CarolB. This person is a verified professional. The help desk software for IT. Free. Track users' IT needs, easily, and with only the features you need. Learn More» Ran into this before new windows 7 machine. The problem there was the ISP came out and replaced the router. Jun 17, · To join a computer to a domain. On the Start screen, type Control Panel, and then press ENTER. Navigate to System and Security, and then click System. Under Computer name, domain, and workgroup settings, click Change settings. On the Computer Name tab, click Change. Under Member of, click Domain, type the name of the domain that you wish this.
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