How to Fix High CPU Usage for Windows Audio Device Graph Isolation

Windows Audio Device Graph Isolation is the primary audio engine in Windows 10, which handles the advanced audio enhancement effects provided by Windows. Windows Audio Device Graph Isolation” is separated from the standard Windows Audio service, which makes third-party apps can run sound on your computer without touching Windows Audio service itself.

This process is always running in the background and you can find it in Task Manager. However, it caused problems sometimes. For example, many users reported that the Windows Audio Device Graph Isolation consumed high CPU on their operating system, affecting their computer performance.
Method 1: Disable Audio effects
1. Instead of going straight into the new Settings app, we want to use the classic Control Panel. Search for Control Panel in your search bar and launch it from the results.

2. Change your view mode to Large icons.

3. Click on Sound. This will bring up a new window containing all of your playback devices.
4. Right-click on your speakers, then select Properties from the menu.

5. Another window will open. Here, switch to the Enhancements tab.

6. Click the box next to Disable all sound effects to place a checkmark. When you’re done, press the Apply button.

7. Repeat steps 4 to 6 on every other playback device you have. When you’re done, restart your computer.
Method 2: Update The Audio Driver
In this method try to update or reinstall the audio driver. So you need to open the device manager.
1. Press Windows Key+ R key at same time to open Run and type devmgmt.msc.

2. This will open Device Manager. Click on Sound, video and game controllers in device manager.

3. Right click on a sound card and then click on properties. Click on the Driver tab. Click on the Uninstall Driver button.
4. A dialog box will ask you to confirm the action. Check the option Delete the driver software for this device. Click on OK.

5. Wait to finish it. Then restart your computer.
Method 3: Reinstall Skype
Some Windows users reported that they fixed Windows Audio Device Graph Isolation high CPU issue by uninstalling Skype and reinstalling it. So if the above fixes do not work for you, you can uninstall Skype from your computer and reinstall it. We recommend you to reinstall the latest version of Skype from the official site.
To uninstall Skype, you can follow the steps below:
1. Press Windows Key+ R keys on the keyboard to bring up the Run dialog box.
2. Copy and paste appwiz.cpl to the Run box and then hit Enter.

3. Find and right-click on Skype from the program list and select Uninstall

Then you can download and install the latest version of Skype and check if Windows Audio Device Graph Isolation high CPU issue disappears.
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