VS 2012 syntax highlighting

Question

I have 2 computers running VS 2012 pro, and none of them show any highlighting or coloring for XML-based files like me for VS2010.

The only express edition tool I installed is SQL 2012, so I don't think this is a problem.

WebMatrix 1 and 2 were never installed on one of the computers.

To a large extent, I do not understand here.

Answer 1

Fixed. I had to reset the environment more than once. Each time led to the fact that during the deployment was violated another part of the VS. In the end, I had reset enough time that everything is working now.

Used "devenv / resetuserdata" to reset VS to fix.