After downloading and installing the 10/12/10 Windows Updates patches, Desktop Window Manager has stopped working. Event Viewer lists the following under Applications:
Source: Application Error
Date: 10/13/2010 9:59:47 AM
Event ID: 1000
Task Category: (100)
Faulting application name: Dwm.exe, version: 6.1.7600.16385, time stamp: 0x4a5bc541
Faulting module name: nvwgf2umx.dll, version: 18.104.22.16822, time stamp: 0x4c5424d5
Exception code: 0xc0000005
Fault offset: 0x000000000007c160
Faulting process id: 0xb0c
Faulting application start time: 0x01cb6aefa117a51c
Faulting application path: C:\Windows\system32\Dwm.exe
Faulting module path: C:\Windows\system32\nvwgf2umx.dll
Report Id: e6dfd048-d6e2-11df-9660-00271383b7fe
The OS is Win 7 x64. Video card is a Gigabyte GTS450OC1 with their latest driver running on an Intel DP55KG mb with 8 gb of Corsair XMS3 memory. The system was fully functional and stable immediately prior to the update. I'm not sure which of the 18 patches is conflicting with the nvwgf2umx.dll file. Device Manager reports no hardware problems with any component.
In my attempts to fix the problem, I've run chkdsk /f, sfc /scannow (which reported no problems), and reloaded the video driver (without uninstalling it first). Nothing works so far. I even tried defragging the Master File Table with Diskeeper 2010 Boot Time Defragger (based on another post I found), also to no avail.
What's the fix for this?