Check settings Regional Settings and Languages. Add the language here.
There is a setting for keyboard and one for menus - two separate locations
within these menus. When you add the new language, you may be prompted for
the XP CD.
If a standard CD was not included in the new PC package, look for an i386
folder on the hard drive. Many OEMs provide this copy of XP setup files on
the hard drive for maintaining and, in some cases, repairing the operating
system. You can redirect XP to the folder instead of using the CD.