One of the first thing I do when I get a new development environment is to disable IE ESC. But what is the IE ESC?
Copy/paste from technet:
Internet Explorer Enhanced Security Configuration places your server and Internet Explorer in a configuration that decreases the exposure of your server to potential attacks that can occur through Web content and application scripts. As a result, some Web sites may not display or perform as expected.
So basically it means you can’t browse :| and that is bad when you working with a web based enterprise portal system like SharePoint :)
So how is disable it?
Open the Server Manager, click on the “Configure IE ESC” and select “Off”, click OK and done :)