OS: Windows 10 Pro 64-bit
Ram: 8GB
HDD: 500GB
CPU: Intel Core i5 430M @ 2.27GHz
GPU: Intel HD Graphics & AMD ATI Mobility Radeon HD 5650 1GB
Java 8 Update 66 (64-bit)
Also using the latest version of Optifine Ultra and will not start even if I don't use it.
Screenshot http://prntscr.com/9a4myb
Launcher Log http://pastebin.com/vUk9Q7V1
This is a technical support issue; this site is for bug reports only. For technical support please use the Mojang Support Center.