To turn the guest account on or off
A guest account provides access to the computer for any user who does not have a user account on the computer.
The steps to perform this task differ depending on whether your computer is a member of a network domain or is part of a workgroup (or is a stand-alone computer).
My computer is on a domain
You must be logged on as an administrator or a member of the Administrators group to activate or disable the guest account.
For information about activating or deactivating the guest account using Computer Management, click To disable or activate a user account.
My computer is not on a domain
You must have a computer administrator account on the computer to turn on and turn off the guest account on the computer.