I have been using Visual Studio 2013 Premium for a few weeks.
Now I suddenly can't start it.
I get the message:
"This license will expire in 2147483647 days.
Your license has gone stale and must be updated."
When I click the provided update link I get the message:
"Sorry, we ran into a problem
Exception has been thrown by the target of an invocation."
Reinstalling hasn't helped.