Studio 2015 crashes when I hit a menu button

Hi,

 

My Studio 2015 won't let me hit any menu buttons nor look up any TMs. I can't even check the help menus. It freezes and crashes. In the end, it gives me the message "The external component has thrown an exception." (a Portuguese version of this: "O componente externo accionou uma excepção").

I own a Windows 10 system.

What should I do?

 

Thanks!