OK some new information on this subject.
UDK July Build
Windows 8 64 Bit Release Preview BUILD 8400
AMD Athlon 7750 2.70ghz Black Edition (Motherboard prohibits OCing)
2GB DDR 2 Ram
GTX 460 1GB (Reference model)
Even with the better OS and graphics card and using the new July Build of UDK it still crashes when using foliage mode? WHY? It doesn't crash when I do what somu189 had suggested, but does if use the normal X Button?
Here is my LOG it's same for DX11 and DX9, here is the DX11 one. I can post the DX9 if needed. It doesn't seem like it gives any kind of error, at least one i can see. I cleared all my LOG's then launched UDK , it fully loaded and I opened foliage mode, I didn't place anything or touch anything, then closed it with the X icon. Instant crash with" BUILT WITH UDK has stopped working "
Log: Log file open, 08/07/12 21:07:13
Init: WinSock: version 1.1 (2.2), MaxSocks=32767, MaxUdp=65467
DevConfig: GConfig::LoadFile associated file: ..\..\UDKGame\Config\UDKEditorUserSettings.ini
DevConfig: GConfig::Find has loaded file: ..\..\Engine\Config\ConsoleVariables.ini
Init: Version: 10246
Init: Epic Internal: 0
Init: Compiled (64-bit): Jul 27 2012 15:52:52
Init: Changelist: 1340247
Init: Command line: editor
Init: Base directory: E:\UDK\UDK-2012-07\Binaries\Win64\
[0000.24] Init: Computer: ADMINISTRATOR
[0000.25] Init: User: Admin
[0000.25] Init: CPU Page size=4096, Processors=2
[0000.25] Init: High frequency timer resolution =2.636813 MHz
[0000.25] Init: Memory total: Physical=2.0GB (2GB approx) Pagefile=4.1GB Virtual=8192.0GB
[0000.25] Log: Steam Client API Disabled!
[0000.27] Init: WinSock: I am Administrator (192.168.254.105:0)
[0000.27] Init: Presizing for 0 objects not considered by GC, pre-allocating 0 bytes.
[0000.27] Init: Object subsystem initialized
[0000.29] Log: SystemSettings based on: SystemSettings
[0000.31] Log: Found D3D11 adapter 0: NVIDIA GeForce GTX 460
[0000.31] Log: Adapter has 978MB of dedicated video memory, 0MB of dedicated system memory, and 767MB of shared system memory
[0000.37] Log: Found D3D11 adapter 1: Microsoft Basic Render Driver
[0000.37] Log: Adapter has 0MB of dedicated video memory, 0MB of dedicated system memory, and 256MB of shared system memory
[0000.38] Log: Shader platform (RHI): PC-D3D-SM3
[0000.63] Log: PhysX GPU Support: DISABLED
[0000.63] Init: Initializing FaceFX...
[0000.63] Init: FaceFX 1.7.4 initialized.
[0003.15] Init: Finished loading startup packages in 2.30 seconds
[0003.16] Log: 81167 objects as part of root set at end of initial load.
[0003.16] Log: 0 out of 0 bytes used by permanent object pool.
[0005.35] Log: Supported Consoles:
[0005.35] Log: IPhone
[0005.35] Log: Mac
[0005.35] Log: PC
[0005.35] Log: Initializing Engine...
[0005.51] Log: Encountered missing default brush - spawning new one
[0005.52] Init: UEngine initialized
[0005.52] Log: Primary PhysX scene will be in software.
[0005.52] Log: Creating Primary PhysX Scene.
[0005.53] Init: Transaction tracking system initialized
[0005.55] Log: Can't find edit package 'OnlineSubsystemGameSpy'
[0005.55] Log: Can't find edit package 'OnlineSubsystemLive'
[0006.15] Init: XAudio2 using 'Speakers (5- High Definition Audio Device)' : 2 channels at 44.1 kHz using 16 bits per sample (channel mask 0x3)
[0006.18] Init: XAudio2Device initialized.
[0006.31] Log: Found PS2 controller with new converter
[0006.41] Log: Found PS2 controller with new converter
[0006.41] Init: Client initialized
[0006.41] Init: Editor engine initialized
[0006.53] Log: Initializing Engine Completed
[0006.53] Log: >>>>>>>>>>>>>> Initial startup: 6.53s <<<<<<<<<<<<<<<
[0006.62] Cmd: MODE MAPEXT=udk
[0006.75] SourceControl: Source Control disabled in UDKEditorUserSettings.ini. [SourceControl] has Disabled=True
[0010.52] Log: Game asset database maintenance completed successfully.
[0012.75] Log: Found D3D11 adapter 0: NVIDIA GeForce GTX 460
[0012.75] Log: Adapter has 978MB of dedicated video memory, 0MB of dedicated system memory, and 767MB of shared system memory
[0012.77] Log: Found D3D11 adapter 1: Microsoft Basic Render Driver
[0012.77] Log: Adapter has 0MB of dedicated video memory, 0MB of dedicated system memory, and 256MB of shared system memory
[0014.50] Cmd: MAP LOAD FILE="..\..\Engine\Content\Maps\Templates\Template_MidDay.umap" TEMPLATE=0
[0014.73] Log: Encountered missing default brush - spawning new one
[0015.03] Log: New File, Existing Package (Package Untitled_2, Package template_midday)
[0015.15] Log: -- Checking Building LODs
[0015.18] Log: Primary PhysX scene will be in software.
[0015.18] Log: Creating Primary PhysX Scene.
[0015.19] Log: Finished looking for orphan Actors (0.011 secs)
[0015.19] Cmd: MAP CHECKDEP DONTCLEARMESSAGES DONTDOSLOWREFCHECK
[0015.20] Log: TIMER ALL OF INIT : [14.556530]
[0027.25] Exit: Preparing to exit.
[0027.55] Exit: Editor shut down
[0027.56] Exit: Transaction tracking system shut down
[0027.70] Exit: Windows client shut down
[0027.70] Exit: XAudio2 Device shut down.
[0027.80] Exit: Object subsystem successfully closed.
[0027.81] Log: Shutting down FaceFX...
[0027.81] Log: FaceFX shutdown.
[0027.84] Exit: Exiting.
[0027.85] Log: Log file closed, 08/07/12 21:07:40
Windows Error reporting service reports this (Not sure if needed just giving all the information needed to maybe find a cause of this issue)
Problem Event Name: APPCRASH
Application Name: UDK.exe
Application Version: 1.0.10246.0
Application Timestamp: 5012f29c
Fault Module Name: KERNELBASE.dll
Fault Module Version: 6.2.8400.0
Fault Module Timestamp: 4fb7153c
Exception Code: e0434352
Exception Offset: 000000000002decc
OS Version: 6.2.8400.2.0.0.256.48
Locale ID: 1033
Additional Information 1: 2316
Additional Information 2: 23166575c8c6865430552948a47a6868
Additional Information 3: 97a1
Additional Information 4: 97a1c9612ac98207c4808692eeaee255