Service Host: Agent Activation Runtime_15831 High CPU And Memory Consumption Fix

If the system resources are highly consumed for a particular task, the computer becomes very slow. If you open the Task Manager then you can see that the “Service Host: Agent activation runtime” is consuming higher CPU and memory. The reason behind this would be your system sound drivers may be corrupted or fewer times the Cortana service may also cause this issue. Sometimes a system restart may solve the issue, if this is not the case then in this article, we have noted down a few methods wherein you can apply those and get rid of the problem.


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Method 1: Sign Out Of Cortana And Disable It From Startup In Task Manager

 

Step 1: Type Cortana in the windows search bar and click on the Cortana app from the search results

 

Cortana

 

Step 2: In the opened app click on the three dots at the left corner

Step 3: Then click on sign out. This option is available only if you have signed in to Cortana

 

Signout

 

Step 4: There appears a confirmation pop up, click on sign out

 

Sign Out

 

Step 5: Right-click on the taskbar and from the appeared list uncheck Show Cortana Button by clicking on it (tick mark should not be present beside it)

 

Coratana Button

 

Disable Cortana From Startup In Task Manager


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Step 6: Right-click on the taskbar and click on the Task Manager to open it

 

Task Manager

 

Step 7: Go to the startup tab, right-click on the Cortana app and click on disable

 

Disable Cortana

 

Step 8: Type Cortana in the windows search bar and right-click on the Cortana app from the search results

Step 9: From the list click on App settings

 

App Settings

 

Step 10: In the opened window under Runs at Log-in, turn off Cortana by clicking on the toggle bar

 

Turn Off Cortana

 

Step 11: Restart the system and check if the is solved.

Next Step : Now,  Edit The Agent Activation Runtime Service Values In Registry Editor

Step 1: Stop the Agent Activation Runtime service [as shown in the above method 5]


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Step 2: Type regedit.exe in the run prompt and hit enter. This will open the registry editor

 

Registry

 

Step 3: A user account control window will appear, click on yes

Step 4: Navigate to the following path in the registry editor

Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\

 

Navigate

 

Step 5: On the left side click on AarSvc 

Step 6: At the right side, double click on its start value

 

Start Value

 

Step 7: In the appeared window, in the value data field change its value to

Step 8: Click on OK

 

Value Data

 

Step 9: Restart the system and check if the Agent Activation Runtime issue is solved.

Method 2: Re-start The Windows Audio Service

 

Step 1: Open the command prompt as an administrator. To do that type cmd in the windows search bar and hold Ctrl + Shift then enter

Step 2: A user account control window will appear, click on yes

Step 3: Copy the below commands and paste it in the command prompt then hit enter. Execute them one by one

net stop audiosrv
net start audiosrv

 

Stop

 

Start

 

Step 4: Once the execution is done, exit from the Command Prompt. Now check if the CPU usage has decreased.

 

Method 3: Re-install The Sound Driver

 

Step 1: Go to OEM website and download the latest version of the sound driver of your system

Step 2: Press Windows + X keys together. In the appeared list click on Device Manager

 

Device Manager

 

Step 3: Expand Sound, video and game controllers by clicking on the arrow beside it

Step 4: Right click on your audio device and click on Uninstall device

 

Uninstall Device


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Step 5: In the appeared pop up click on uninstall button

Step 6: Check if the issue is solved. Restart the system and default driver will be installed.

Step 7: If the CPU usage is normal then the issue is solved, if not then install the downloaded driver [step 1] as administrator and check if this resolves the issue.

 

Method 4: Disable the Agent Activation Runtime Service

 

Step 1: Open the run prompt using Windows + R keys together

Step 2: Type services.msc in the run prompt and hit enter. This will open windows services

 

Services

 

Step 3: Find for Agent Activation Runtime service and double click on it

Step 4: In the opened window, from the start up type drop down select disabled 

Step 5: Then click on Stop button to stop the service

 

Disable

 

Step 6: To save the changes click on Apply and ok

Step 7: Restart the system and check if the issue is solved.

That’s it! I hope this article is helpful and let us know which of the above method you applied to solve the issue. Thank you!!

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