Windows 10: dwm.exe - Application Error

Hi, I saw this error on the login screen today.


dwm.exe - Application Error


The instruction at 0x00007FFDCFA82290 referred memory at

0x0000026125FFB000. The memory could not be written.



Click on OK to terminate the program.

:)

 

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.

 

regsvr32.exe - application error

Hello,

I would like to inform that Regsvr32.exe Application Error
Codes are caused by misconfigured system files in your windows operating system or by the following reasons:

• missing or damaged or modified .dll files.
• Invalid Entry or Command path.
• Active X control errors.
• Registry issues.
• Viral or Malware Attack.

I suggest you to run SFC scan and check if it helps.

System File Checker is a utility in Windows that allows users to scan for corruptions in Windows system files and restore corrupted files.

Follow the below steps:

• Right click on the Start button, click on
  Command Prompt (Admin).
• Type “sfc /scannow” without the quotes and hit
  Enter.
• After the scan, restart the computer and check for the issue.

Reference: http://support.microsoft.com/kb/929833

Note: If you are not able to repair some files after performing SFC scan, I suggest you to refer to the point 3 “Windows Resource Protection found corrupt files but was unable to
fix some of them. Details are included in the CBS.Log %WinDir%\Logs\CBS\CBS.log”. Under the section “Run the System File Checker tool (SFC.exe)” to repair the corrupted files after performing SFC scan.

Refer: Use the System File Checker tool to repair missing or corrupted system
files

Hope this helps. Keep us posted on the status for further assistance.