To find your computer name in XP,  either open up Control Panel in Classic View,

open the System folder…

– OR right-click on the My Computer icon and click Properties from the drop-down list,

(Your particular specifications may be less detailed than mine. To give yours that professional look, see this article.)

then click on Computer Name.

The information you’re looking for is shown after the tag "Full computer name".

If there’s a period (full stop (.)) at the end of the name, ignore it.

To change the name if your computer; click the Change button in the Computer Name tab and type in a new name. You can also change the workgroup or domain-name here too.

Target neutralised.