Re:US courts disagree. (Score 1)

I don't know any of the details of the foreign litigation. Are they countries where trademarking of generic terms is allowed?

You might just find that the English word "windows" isn't even a word in these foreign countries/languages, so it could be happily argued that it can be trademarked.

(There are plenty of car names in the UK that are real words in some foreign language (sometimes slang obscenities - which does wonders for exports) and are trademarked in the UK.)

You might then understand why Microsoft are pursuing Lindows in foreign courts and probably hoping that they can destroy them before the US court makes a decision on the Windows trademark in the US.