DWM and dual adapters (NVIDIA) Crash

[Evening Wood]

Yesterday i upgraded my CPU and Motherboard, all went well in the drivers and hardware setup until i installed my GTX 670 , DWM started crashing at system startup and window's movement started lagging (they don't freeze of flicker at all, they just lag when moving or resizing and yes DWM was working well when under Intel graphics).

Hardware:
Motherboard ASUS Z97-AR
CPU: i7 4790k (@ stock speed)
Video: GTX 670

Things i had tried so far:
-Restarting DWM service
-Disabling Intel integrated graphics
-Disabling CPU graphic multi monitor (bios)
-Setting PCI/PCIe has the main display (bios)
-Unistalling drivers /fix/reinstall/rollback/updating

The hardware passes benchmark tests, games don't lag at all and as far everything works at top speed, am i missing some NVIDIA configuration for this dual screen?

Logs:

-Desktop Windows Manager crash window:
Problem signature:
Problem Event Name: APPCRASH
Application Name: Dwm.exe
Application Version: 6.1.7600.16385
Application Timestamp: 4a5bc541
Fault Module Name: nvwgf2umx.dll
Fault Module Version: 10.18.13.5582
Fault Module Timestamp: 55dc6ce8
Exception Code: c000001d
Exception Offset: 0000000000a46b35
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033
Additional Information 1: acad
Additional Information 2: acadf4d1b96644805687a6324f8706e6
Additional Information 3: ba84
Additional Information 4: ba84d772d52f3de757b12d86d073b5a4

-DxDiag:
it stops working and tells me "DxDiag has detected that there might have been a problem accessing Direct3D the last time this program was used. Would you like to bypass Direct3D this time?"


-Windows experience Index crashes at "Running the Direct3D 10 Batch Assessment"
Problem signature:
Problem Event Name: APPCRASH
Application Name: winsat.exe
Application Version: 6.1.7600.16385
Application Timestamp: 4a5bc551
Fault Module Name: nvwgf2umx.dll
Fault Module Version: 10.18.13.5582
Fault Module Timestamp: 55dc6ce8
Exception Code: c000001d
Exception Offset: 0000000000a46b35
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033
Additional Information 1: 56cc
Additional Information 2: 56cc85c9c1d4b8d04a12ac0f6367654f
Additional Information 3: 2bc3
Additional Information 4: 2bc320280fb982667f404cbedb733b88

Any workaround or Nvidia config i'm missing?, the windows lag is killing me.

[HardcoreFinesse]

I'm having the EXACT same problem. I built my computer 2 years ago and never had this issue running on just my i7. I have recently installed a graphics card. I'm using an MSI military class board. I updated all my drivers, I updated my BIOS, I made sure I was on an Aero theme (the only reason I care about this, is because when I run Open Broadcasting Software, which is a basic screen video capture, it says Aero is disabled. Well OF COURSE it is, DWM has stopped working!). I have the exact same problem signature you do. I've been searching for days, I came across this post 3 days ago but was looking for a solution and didn't want to spend the time writing. Well, now I've hit the bottom of the barrel and just need some flat out help. -,-. This is so annoying. Some say it may be due to an non-legit windows. My friend actually setup my PC... sooo. not sure if this is legit or not. i7, MSI bored, EVGA 780 classified, 8 gigs ram... plenty of power. I don't know why this is happening. WHY ME?! Anyways. Glad I'm not alone. I'll be actively trying to figure this out until... well... a solution.

-Maos

[☣-BlueSkuLLy-☣]

Sounds like a driver conflict, do you both use nvidia geforce experience?

[Bad 💀 Motha]

I would have to at first suspect GPU Driver issues; and as such do a full Uninstall of the NVIDIA Drivers and all of it's extra Software. Then reboot; let Windows auto-detect the GPU normally. When asked to reboot again, click NO. Then run DDU > http://www.guru3d.com/files-details/display-driver-uninstaller-download.html < and follow it's directions for use. Very simple. And this is one of those problem times when use of DDU is worth a try, as that can often resolve this sort of issue if it is driver related.

In the future, never use "RollBack" ~ If you want to properly change a driver, especially anything GPU related, do it by uninstalling everything related to GPU Driver & Software for that; reboot as needed; then clean install it.

When u do NVIDIA Drivers, always select "Custom" and then click the "Clean Install" option in there. Also helps that if you do use Geforce Experience, set that in it's options to "Notify Only" rather than "Auto Update". For downloading NVIDIA Drivers, always use Geforce.com/Drivers and manually download the entire suite; rather than using GFX to handle driver downloads/installs.

And for use of OBS; under it's options > video; there is a "Disable AERO" box there; which is best to apply. So that when you use OBS it temp auto-disables "Aero/DWM" as not to get in the way of how that kind of app works.