Having problem in user controls (C#)

Question

Hello everyone I have a problem also i was a programmer since 6 years ago but the problem is this: 1: I'd made a user control in C#. 2: I added this control to my projects. 3: When i click the icon in tool box and want to add control visual studio closes suddenly without any warning or errors. So I've tried lots of things to fix it but I coundn't fix it! In fact I don't know what is problem.There is no in my codes, no errors in building user control ... But still I DONOT KNOW.PLEASE HELP ME DEAR PROGRAMMERS.