Well, if you were going to install 600Mb+ of updates, you may as well have downloaded Office 2013 from scratch, then reinstalled that after wiping the old installation - the right way, per the instructions in my post #6. There's no telling what corruption is still lurking in your system after the way you've done it. Simply deleting program files goes nowhere near removing the program's templates, registry entries, etc., some of which Office 2010 is now likely to pick up and adopt as its own.

Microsoft is readily contactable, by email and by phone. It also has extensive on-line support pages, including the one I referred you to. It's hardly fair to complain about a lack of support and advice when you haven't provided any indication on how the problem arose in the first place, just as you've done here... Oh, and this board has no connection with Microsoft, in case you were wondering.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]