Windows .exe Crash upon startup

[Gamer375]

So i recently started playing FTB unleashed and that was running fine but my friends and i decided we wanted to change to Direwolf20 so i download all appropriate files check i have the latest Java and the game just crashes when i try to load it i tried techworld that works fine but it seems to be direwolf20 just crashes and then closes itself my friends and i spent hours trouble shooting uninstalling FTB and reinstalling FTB/ Java, Force update, Assigning more ram, everything and we just couldn't get it to run my computer is more up to date than theirs yet still i cannot run it even after trying to assign a whole 7.75GB ram

Pastebin of log: http://pastebin.com/xEb4kgrp
Edit Crash Report: http://pastebin.com/qXSai50W

Specs:
Power Supply: Corsair CX500 500WProcessor: Intel Core i5 4570 3.2Ghz
Processor Cooler: Stock Manufacturer Heatsink and fan
RAM: 8GB Corsair DDR3 XMS3 1600MHz/PC12800
Motherboard: Asus H81M-PLUS
Graphics card: AMD/ATI Radeon R7 260X 2GB
Hard Drive: Seagate Barracuda 500GB Hard Drive 7200rpm 16MB Cac
Operating System: Windows 7 Home Premium

 

[UniZero]

There is no crash in that log. We need the log after the crash happens.

Go to the options and make sure that 'reopen launcher....exiting minecraft is ticked. The launcher will launch after the crash happens. Now go to the console and use the pastebin button.

Also never allocate all your ram to java. The most you will ever need is 5gb.

 

[Gamer375]

Java(TM) Platform SE binary doesn't respond apparently and the paste log looks exactly the same after it crashes also the small animation with the FTB before you get the Mojang sign doesn't appear either it goes straight to minecraft 1.6.4 with the mojang sign and then just crashes.

Edit: I don't often assign more than 4-5 but it was in desperation

 

[Milmot]

I updated the Direwolf20 pack yesterday and i cant launcher it, all that happens when i click launch is the main menu closes then the consol closes.

 

[Gamer375]

I uploaded the crash report now?

 

[UniZero]

You have a java flag listed in your log that is causing minecraft to only use 512mb of ram. Follow the steps from the link below to remove it.

http://forum.feed-the-beast.com/threads/direwolf20-pack-crashes-on-load.41319/#post-562561

 

[Max_Output]

So i uninstalled the game as well as FTB launcher and did a fresh install and still it wont work..the game opens for about 20 seconds then crashes to desktop.

Pastebin log attached Http://Pastebin.Com/S4QvvkTF