Visual studio 2013 pro peek definition hangs

Question

Any idea why Visual Studio peek definition will not work for any project or solution? I have a web, WP and a couple other ones. I can click on a class or method or property and click alt+F12 or right click and select peek definition. The peek window pops up with a progress bar like it is working but just hangs there. Nothing ever shows up in the peek window. Half the time I get this and half the time VS just crashes on me when I try and launch it. I have done a VS repair but that changed nothing.

Answer 1

So I uninstalled a couple dev prod tools and then did another repair and this time it fixed the issue. Peek pops up right away. So something was getting in the way.