After helping a friend troubleshoot issues stemming from the difference between Microsoft’s MSI and Click-to-Run installers, I am now convinced that all knowledge base articles that ask for feedback need an additional checkbox.
(background, friend had legal Office 2013 license installed via MSI. Bought Project as a downloadable online. Project uses Click-to-Run installer. This article says that MSI and CTR versions cannot co-exist, and to fix the problem he needs to uninstall Office.)
No wonder Google Docs is taking over the world.