MAC Sierra 10.12.1 crashes when Arduino is plugged in

I was using it perfectly few months back but then upgraded with latest MAC Sierra and the problem started
MAC crashes and black screen with different languages come and says press any key. but if the arduino uno board is still connected then another black screen comes up and keeps coming unless until i unplug arduino.
It means i cannot plug in arduino board.
Any suggestions. I have read apple and they have shipped the os with latest drivers. Dont know how to fix it. May be some one can help please

You've got a clone board with the CH340G serial chip.

The old CH340G driver crashes sierra. A new one is available. You must uninstall the old one and install the new one. Searching forums or google will get you the details.

Hi , Thanks for the reply
But i am using genuine Arduino board comes with Arduino startup kit.
Do you still think i should follow the instructions you gave above?