A. Typically, when an authentication dialog box prompts for a username, it defaults to the domain name, or you can specify the domain by using the format (NetBIOS domain name)\user (e.g., savilltech\john) or user@(FQDN of domain)--for example, john@savilltech.com.

If you want to use a local account on the machine, just pass the machine name instead of the domain name--for example, localmac\bob. If you can't remember the local computer name, just use a period (.) instead--for example, .\bob.