1. Right click on ‘My Computer’.
2. Click on ‘Properties’.
3. Click on ‘Computer Name’ tab.
4. Click on ‘Change’ button.
5. Click on ‘Computer name’ box and type the computer name.
6. Click on ‘Workgroup’ and type the workgroup name.
7. Click on OK.
8. If the system asks for the administrator name then type the name of administrator and its password.
9. Click on OK / OK / OK / Yes.