How to Fix Desktop Window Manager High CPU on Your Windows 10 Device

Are you experiencing issues with your Windows 10 device, where the Desktop Window Manager is consuming a significant amount of CPU or memory resources? This can lead to slow performance and other system-related problems. In this article, we will explore some effective ways to fix high CPU usage by Desktop Window Manager (DWM.exe) on your Windows 10 device.

Before we dive into the solutions, it's essential to understand what the Desktop Window Manager does. Its primary function is to manage desktop utilization by handling tasks such as rendering windows, displaying wallpaper, and applying themes. However, if a wallpaper or theme you're using is resource-intensive, it can cause high CPU usage by DWM.exe.

To identify the issue, follow these steps:

1. Type 'performance' into the search box at the upper right corner of your screen.

2. Select 'None' from the drop-down list of Screen saver options.

3. Look for the Screen saver settings option in the right panel and click on it.

4. Type 'lock screen settings' and press Enter on your keyboard.

5. Press the Windows + S keys to open Windows Search.

Now, you can start changing Background picture, Colors, Lock screen background, and Themes to see if this resolves the issue. Alternatively, you can replace these steps by right-clicking on a blank area of your desktop and choosing Personalize.

If the above steps don't resolve the issue, you can try another approach:

1. Select 'Personalization' from the window.

2. Choose 'Settings' (represented by a gear icon) from the left sidebar menu.

3. Click on the Windows logo button in the lower left corner of your screen.

By following these steps, you should be able to identify and resolve high CPU usage by Desktop Window Manager on your Windows 10 device.

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