On my Windows XP Home (SP1) Office 2k SR-3 patch broke Word. Symptoms: Change in language settings from English to Spanish or from Spanish to English immediately crashed Word, and did so every time and in every document I tested. The patch also rendered Word incompatible with all existing long data forms (10 - 30 pages, legal size, landscape orientation) - all tables except for one-line headers with page numbering. Every such doc crashed Word within moments of opening.

Perhaps it is significant that this update ran over Office 2000 SR-1 (without warning or complaint).

In any event, Windows XP (bless its heart!) allowed Office to uninstall itself completely