On the Network Identification tab, click Properties.
Under Member of, click Workgroup, type the name of the workgroup that you want to join, and then click OK.
If your computer was a member of a domain before you joined the workgroup, it will be disjoined from the domain and your computer account will be disabled.
Note
You must be logged on as an administrator to the local computer to join the computer to a workgroup.
To open a Control Panel item, click Start, point to Settings, click Control Panel, and then double-click the appropriate icon.
A workgroup name must not be the same as the computer name. A workgroup name can have as many as 15 characters, but it cannot contain any of the following:
; : " < > * + = \ | ? ,
If your computer is a member of a workgroup, no networking is installed, or TCP/IP is not installed, the computer name cannot be more than 15 characters, and the characters must all be uppercase.
Note