Windows 10: Can't get W10 to disable DWM in full-screen mode for older DX7 games

If it's a DX9 app or newer, it disables DWM no problem.

But if I play an older game that uses DX7, W10 doesn't doesn't DWM even if I alt-enter the game. I can tell because my on-screen volume indicators still show up, whereas they normally wouldn't in true full-screen.

submitted by /u/moal09
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:)

 

full screen problem in gaming

Hello Ganesh,

It's unfortunate that you are facing issues with the display in Windows 10. We'll certainly assist you with this.

We appreciate your efforts in trying to resolve the issue.

Share this information to assist you better.

• What is the make and model of the computer?
• Is the issue particular to that game or other games also?

This issue could occur if the your playing a game at a different resolution than the desktop resolution.

I suggest you to try the below steps and check if it helps:

Step 1: I suggest you to check the resolution of the game as well as the resolution with in the computer and see if you are able to play the games in full screen.

Step 2: I suggest you to follow the below link to troubleshoot the issues related to DirectX graphics and gaming on Windows 10.

DirectX Graphics and Gaming

Also,

Troubleshoot games

You can install Windows 8/8.1 drivers in compatibility mode from Manufacturer's website, if there are no Windows 10 compatible drivers.

Follow the steps to install in Compatibility mode:

• Download the updated driver from the manufacturer’s website.
• Right click the driver installation file and select Properties then tap or click the
  Compatibility tab.
• Place a check in the Run this program in compatibility mode for: box.
  
• Tap the drop down box and select a previous operating system, then tap or click
  OK.
• Try installing the driver and check.

Hope it helps. Kindly update the status of this issue, we will be happy to help you further.

 

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.

 

Problem with Windows 10 taskbar and Full Screen games

Hello Richard,

Thank you for responding in Microsoft Community.



I suggest you to try the below steps and check if it helps:

Step 1: I suggest you to check the resolution of the game as well as the resolution with in the computer and see if you are able to play the games in full screen.



Step 2: I suggest you to follow the below link to troubleshoot the issues related to DirectX graphics and gaming on Windows 10.

DirectX Graphics and Gaming

Also,

Troubleshoot games

You can install Windows 8/8.1 drivers in compatibility mode from Manufacturer's website, if there are no Windows 10 compatible drivers.

Follow the steps to install in Compatibility mode:

• Download the updated driver from the manufacturer’s website.
• Right click the driver installation file and select Properties then tap or click the
  Compatibility tab.
• Place a check in the Run this program in compatibility mode for: box.
  
• Tap the drop down box and select a previous operating system, then tap or click
  OK.
• Try installing the driver and check.

Hope it helps. Kindly update the status of this issue, we will be happy to help you further.