Each quarter Microsoft Support updates a list of the most common issues seen using or deploying Windows 8.

This list can be a great resource if you are troubleshooting things on Windows 8 and is a good starting place and the list is broken down into several areas.

Installing Windows Updates and Hotfixes

Modern App Installations/Start Up

Modern App not seen on Start Screen

Wi-Fi Direct not available after Suspend/Resume

Resuming after system hibernation