When running a network for a group of computers, you'll need to have an administrator password. The administrator is the only one allowed access to certain functions on the network. If everyone had full access, security would be a major problem because anyone could change passwords, edit critical system files or download and install dangerous software. Microsoft Server provides administrators a simple way to change the administrator password for all client computers using a group policy.
Click "Start," "Administrative Tools," and then click "Group Policy Management."
Navigate through the following menus on the left pane: "Computer Configuration | Preferences | Control Panel."
Right-click on "Local Users and Groups" and then click "New Local User."
Type "Administrator" into the User Name box.
Type a password into the Password box. Confirm the password by typing it again in the Confirm Password box.
Click "Apply" to save these settings.
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