Visual Studio 2013/2015 Idle CPU usage

Question

I\'m currently evaluating Visual Studio 2015 RC. I\'ve noticed when running the IDE, The Visual Studio 2015 process is constantly at around 25% CPU usage. Even without a project

Answer 1

In my case disabling Telerik ASP.NET MVC Extension solved high CPU issue.

High CPU load started on solution load and didn't drop (40% with one, 80% with two solutions) until VS was closed or even sometimes after (had to kill the process).

Tools->Extensions and Updates->Installed, find the extension and click 'Disable'.