Office pro plus 2016 won't fully install on Windows 10. I get about 90% installation then it just sits there and does nothing (box saying 'installing Office. We'll be done in just a moment"). Been like that for nearly 2 hours. This is the 2nd time I've tried to install it (deleted all traces of the first one with Revo Uninstaller). The first time installation did exactly the same thing - 90% installation, then limbo.