To change the computer name, to join a domain, or to add a computer description for a Windows XP-based computer, use the Computer Name tab in the System Properties dialog box. To locate this tab, use one of the following methods:
1. Click Start–> right-click My Computer–> and then click Properties.
Or
2. Click Start–> click Run–> type sysdm.cpl–> and then click OK.
Or
3. Click Start–> click Control Panel–> double-click Performance and Maintenance–> and then click System.
4. Select Computer Name tab–> and click Change to change computer name and workgroup.
5. In this Computer Name Changes window–> key in Computer Name and also Workgroup.
Note: Please make sure computer name is unique in your network and not more then 15 characters. Avoid using these characters for naming your computer: * “ . , @ /
6. System will prompt you to restart computer–> Click OK and restart your computer for the changes to take effect.
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