UE4 crashes after clicking Launch button

After clicking on Launch button it’s loading to 96 % and then it shows “Unreal Engine has stopped working”.
But when I open any project from libary it works fine. I already reinstalled Unreal Engine but it doesn’t work. It started to happen after creating first project on updated to 4.7.2 UE4 version. here is launcher log: Log file open, 03/06/15 19:15:02LogModuleManager:Warning: ModuleManager: Modul - Pastebin.com

Hi goldenMoth,

Could you also post your dxdiag (system specs) as well?

OS Name Microsoft Windows 7 Ultimate

Version 6.1.7601 Service Pack 1 Build 7601

System Manufacturer Gigabyte Technology Co., Ltd.

System Type x64-based PC

Processor Intel(R) Core™ i5 CPU 760 @ 2.80GHz, 2794 Mhz, 4

Core(s), 4 Logical Processor(s)

BIOS Version/Date Award Software International, Inc. F8, 2010-02-11

SMBIOS Version 2.4

Windows Directory C:\Windows

System Directory C:\Windows\system32

Boot Device \Device\HarddiskVolume1

Hardware Abstraction Layer Version = “6.1.7601.17514”

Installed Physical Memory (RAM) 4,00 GB

Total Physical Memory 4,00 GB

Available Physical Memory 2,08 GB

Total Virtual Memory 7,99 GB

Available Virtual Memory 5,15 GB

Page File Space 4,00 GB

Page File D:\pagefile.sys

Graphics card Nvidia GeForce GTX 460 SE

Make sure that your graphics card driver is up to date. Get the latest one but not the beta driver, they can sometimes be unstable.

Hi goldenMoth,

We haven’t heard back from you in a few days, so we are marking this post as resolved for tracking purposes. If you’re still experiencing this issue, please try the suggestion that I posted above and post back here with your results.