Reinstalling Microsoft Office is sometimes not trivial. To help you uninstall Office properly, Microsoft has published a removal tool.
Tag: uninstall
Been trying Messenger 2010? Problems might come up. (Update)
You have been trying Messenger 2010 recently after downloading and installing the leaked Milestone 2 beta 15.2.2583.119? You might get problems when you want to go back to Messenger 2009.