Windows 10: dwm.exe gpu overlolad in games

Hi, few days ago I've installed new motherboard and new processor. After that I noticed one strange thing. When I'am at desktop and press windows open with apps and list of that - https://prnt.sc/y0qw3t or pressing alt + tab dwm.exe load on gpu increases from 0,1-0,7% to 5% and I don't think it's ok
But situation getting worse when I launch Fortnite. If press windows button or alt + tab while i'm in fortnite dwm.exe gpu load
growing up to 60%-100% windows pannel or alt tab window switching mode is active. However when i close it and open fortnite window dwm is lowering to normal. The main problem is in that, while fortnite is open and i switch window to chrome or discord or other programms dwm and csrss loading gpu so much dwm is growing to 80-100% before i open fortnite again.
I tried to uninstall nvidia drivers, check the viruses, lower a priority, get back to old Windows version but it didn't helped me

[COLOR=rgba0, 91, 106, 1]P.S. before installing new motherboard and new processor dwm and csrss were okay[/COLOR]

:)

 

Dwm and csrss using my gpu

Hey so the dwm and csrss using my gpu while im moving window folder(dwm) and while im moving cursor (csrss) and each of them can use 10% or higher

And when im in csgo there is 10% of use of it (dwm) and 20% for.csgo im wondering if its okey or not

 

disabling dwm access denied

I don't know if it is even possible to disable DWM and still have Windows working normally but I found a list of solutions that can solve problems related to DWM:

How to fix Desktop Window Manager notification issues in Windows 10

 

Get better Game Performance under Vista by disabling DWM on a per-application basis!

I just came across this tip/tweak, which probably many who are familiar with Vista already know... It's about disabling the aero effect on a per-application basis, so that you get vista basic interface during gameplay (when you're not going to see it) and it switches back to aero when you exit the game.

DWM, or the Desktop Window Manager, turns the graphics card into a shared resource which allows for the Aeroglass effects and the tear-free desktop. When running normal applications, this is a good thing because it offloads the graphics work (the bulk of which was handled by the CPU in Windows XP) to the GPU, which, when running normal applications is sitting in your computer doing nothing. With Aeroglass/DWM on, the CPU is freed up for other duties as all of the desktop graphics are now handled by the GPU.

In DirectX 9 and OpenGL games however, having Aeroglass/DWM on can decrease performance. This is for a number of reasons :
1.DWM makes the video card a shared resource. When DWM is on, programs are not allowed direct access to the video card.
2.DWM uses both System RAM and VRAM because it maintains an offscreen buffer for every window.

Fortunately, Microsoft has provided a way to disable DWM on a per-application basis so you can still enjoy Aeroglass when not running games. To disable DWM on a per-application basis, right click on the application/game's icon and select properties. Navigate to the compatibility tab, then find and check Disable Desktop Compositing. Now, whenever you launch that program, Windows Vista will temporarily switch back to the Windows XP style graphics subsystem.

DirectX 10 games shouldn't be affected as much (if at all) by having DWM on because the DirectX 10 API is designed around having the GPU as a shared resource and is better able to handle GPU multitasking.

With a few simple steps, on most setups, you can easily make your games run as fast or faster than in Windows XP under Windows Vista.

This will work on both the 32-bit and 64-bit versions of Windows Vista.