Warning about VirtualBox

[anon(8150199)]

If you're running build 9926, DO NOT INSTALL VIRTUALBOX. It will screw up your machine from starting up, and when you recover it using System Restore, Start menu, search box (or Cortana), and Notification center will go dud too. I've done this twice so you don't have to lol.

Edit: Neither will pretty much any Modern app be able to start.