That was on my older Alienware Laptop, going to try it on my new quad-core 64 bit desktop and see if it works. DON'T FORGET to do step one, safe mode alone will not work!
Gods bless the Devs who thought to put and keep Safe Mode in the launcher! I followed Jayaline's directions and am back up and running. (Running Windows 10 with Nvidia graphics drivers)
This problem appears to be system wide. There are several reports of this issue on other forums. I am also experiancing this as of 11:48 CST (09:48 PST).