Task Manager shows Desktop Window Manager, or dwm.exe, using a large amount of graphics processor time. Windows 10 Desktop Window Manager high GPU usage can make animations stutter and fans spin up.

DWM draws everything you see on screen, including windows, transparency, and animations. Some YY PAUS GPU usage is normal, especially with multiple monitors or high-resolution displays.

Unusually high use usually comes from drivers, display settings, or apps that update the screen constantly.

You can see the figure in Task Manager by adding the GPU column on the Processes tab. On most PCs, dwm.exe uses a few percent while idle and more while windows are moving.

Why This Happens

DWM uses more GPU for these reasons:

• Multiple monitors or very high resolutions increase drawing work.
• Visual effects and transparency are enabled.
• A graphics driver is outdated or faulty.
• An app is redrawing the screen constantly, such as a video player or animated wallpaper.

Monitors with high refresh rates also increase the amount of work.

Start With These Basic Checks

Reduce visual load.

1. Close apps that display animations, videos, or live wallpapers.
2. Open Settings > Personalization > Colors and turn off transparency effects.
3. Open System Properties > Advanced > Performance > Settings and choose “Adjust for best performance” as a test.
4. Lower the refresh rate temporarily in Display settings.
5. Restart the PC.

If usage drops, a visual feature or app was responsible.

Remember that some activity is unavoidable. Dragging windows, playing video, and scrolling long pages all increase usage briefly, and that is the process working as designed.

Going a Step Further

Update and adjust graphics settings.

1. Install the latest graphics driver from NVIDIA, AMD, Intel, or your PC manufacturer.
2. Check Settings > System > Display > Graphics settings and try toggling hardware-accelerated GPU scheduling.
3. Disconnect extra monitors to see whether usage changes.
4. Update or remove apps that provide desktop overlays or animations.
5. Run sfc /scannow to rule out system file problems.

High DWM usage on systems with integrated graphics is more noticeable because the GPU is less powerful.

On laptops with two graphics processors, check the graphics settings page and make sure demanding apps use the more powerful one, which reduces strain on the integrated chip that also handles the desktop.

A Word of Caution

Do not try to end or disable dwm.exe. It is essential to Windows, and ending it causes the screen to flicker or reset. Download graphics drivers only from official sources.

Wrapping Up

Desktop Window Manager GPU use reflects the work needed to draw the screen. Reducing visual effects, updating drivers, and closing animated apps usually bring it down.

If usage only becomes high when a particular program is open, contact that program’s developer or check for an update, since the fault lies with how it draws to the screen.