After a certain Windows 8.1 update, icons and text disappear from Outlook and Lync 2013 tiles. All you can see are two blank blue tiles. Let me show you how to bring back icons and text.
By default the command line outputs are displayed onto a screen, but you can easily redirect into a text file or even make it to be used as an input for the following command.
If you need, besides major accounts, an extra account with limited access to data, you can add Windows 8 Guest account. The process is almost the same as in Windows 7.