How do I back-out of 10.10.2 update, HDMI no longer display, screens blink?

How do I back-out of 10.10.2 update?

Since the update I can no longer display when I plug in the HDMI port, causes al the screens to blink, appearing as if its swapping from one display to the others.

Please help

MacBook Pro (Retina, 15-inch, Late 2013)

Processor 2.3 GHz Intel Core i7

Memory 16 GB 1600 MHz DDR3

Graphics NVIDIA GeForce GT 750M 2048 MB