If you want to format hard disk windows xp follow these steps.
Open My Computer, select the hard disk that you want to format, right click and select format (see picture)
Now to continue with format hard disk windows xp, you can leave all the settings to default, and click format ( see picture )
You should be aware that when you format your hard disk in windows xp all of the data stored in the disk will be deleted!
Congratz, your hard disk is formatted.