How to Resolve Agent Activation Runtime_15831 High CPU & Memory Consumption on Windows PC

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High memory usage is a condition in which the use of RAM, ROM, or cache on Windows computers reaches extremely high levels. The high memory usage error in Windows 10 is related to RAM and virtual memory.

If a high memory error occurs on a PC, it hangs while running a program and displays an error message indicating that the computer is running out of memory.

This troubleshooting article will talk about Agent Activation Runtime_15831 high CPU and memory consumption on your Windows PC.

Why is Agent Activation Runtime_15831 consuming a lot of CPU and memory?

  • This problem may occur if the Agent Activation Runtime service is in an error state or is not running.
  • The Agent Activation Runtime problem can occur when Cortana is constantly called by the Agent Activation Service.
  • Agent Activation Runtime can cause high CPU utilization when your system’s audio service is in an error state because Cortana (runtime calls Cortana) depends on the audio service.
  • High CPU usage by the Agent Activation Runt can be caused by a corrupted audio driver on your system because it is required for Cortana (the process that the Runt constantly calls).

How to solve Agent Activation Runtime_15831 High CPU and memory usage?

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Turn off Cortana

  1. Press Windows + X to open the Quick Start menu.
  2. Click Task Manager -> Click the Start tab.
  3. Select Cortana from the list -> Click Disable.
  4. Now click the Start menu -> Enter Cortana.
  5. Go to Application Settings -> Disable Cortana from the Run at Logon option.
  6. Be sure to restart your computer for the changes to take effect.

Reinstalling the sound drivers

  1. Go to the respective manufacturer’s website and download the latest sound driver file to your computer.
  2. Then press Windows + X to open the Quick Start menu.
  3. Select Device Manager from the list -> Double-click Sound, Video, and Game Controllers.
  4. Right-click the audio device -> Select Uninstall Device.
  5. Make sure that the Uninstall Driver Software for this device check box is selected.
  6. Then click the Uninstall button again to complete the process.
  7. Then install the last downloaded sound driver file.
  8. Reboot your computer to apply the changes and check the problem.

Disabling the runtime service activation agent

  1. Press Windows + R to open the Run dialog box.
  2. Then type services.MSC and press Enter to open the services.
  3. If UAC is prompted, click Yes to allow access.
  4. Find the Agent Activation Runtime service in the list.
  5. Double-click it to open its properties.
  6. Select Disabled as the startup type.
  7. Then click Suspend to stop the service.
  8. Click Apply to save changes -> Select OK and restart your computer.



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Frequently Asked Questions

  1. Press the Windows key and type: Services in the search box.
  2. Then right-click on the Agent Activation Runtime service.
  3. Then select Properties and change the startup type to Disabled.
  4. Then click Stop and apply the changes.

Yes, first disable Cortana in your launcher applications (you can do this from the "Launch" tab in Task Manager). Then in the Services app. (services can be opened via the "Services" tab in Task Manager) right-click on "Agent Activation Runtime_xxxxx". (xxxx are random letters and numbers), then click Stop.

Running the Agent Activation Runtime can cause high CPU utilization if your system's audio service is in an error state because Cortana (the execution calls Cortana) depends on the audio service. In this context, temporarily turning off the audio service and then turning it back on can fix the problem and thereby resolve it.

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