Agent Activation Runtime (AarSvc) Service Defaults in Windows 10
Runtime for activating conversational agent applications.
The Agent Activation Runtime service exists only in:
- Windows 10 Home 1903
- Windows 10 Pro 1903
- Windows 10 Education 1903
- Windows 10 Enterprise 1903
- Windows 10 Home 2004
- Windows 10 Pro 2004
- Windows 10 Education 2004
- Windows 10 Enterprise 2004
- Windows 10 Home 20H2
- Windows 10 Pro 20H2
- Windows 10 Education 20H2
- Windows 10 Enterprise 20H2
- Windows 10 Home 21H1
- Windows 10 Pro 21H1
- Windows 10 Education 21H1
- Windows 10 Enterprise 21H1
- Windows 10 Home 21H2
- Windows 10 Pro 21H2
- Windows 10 Education 21H2
- Windows 10 Enterprise 21H2
- Windows 10 Home 22H2
- Windows 10 Pro 22H2
- Windows 10 Education 22H2
- Windows 10 Enterprise 22H2
Default Settings
| Startup type: | Manual |
| Display name: | Agent Activation Runtime |
| Service name: | AarSvc |
| Service type: | user share process template |
| Error control: | normal |
| Object: | NT Authority\LocalService |
| Path: | %SystemRoot%\system32\svchost.exe -k AarSvcGroup -p |
| File: | %SystemRoot%\System32\AarSvc.dll |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AarSvc |
| Privileges: |
|
Default Behavior
In Windows 10 it is starting only if the user, an application or another service starts it. If Agent Activation Runtime fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the AarSvc service has failed to start due to the error.
Dependencies
Agent Activation Runtime cannot be started under any conditions, if the Windows Audio service is disabled.
Restore Default Startup Configuration of Agent Activation Runtime
Before you begin doing this, make sure that all the services on which Agent Activation Runtime depends are configured by default and function properly. See the list of dependencies above.1. Run the Command Prompt as an administrator.
2. Copy the command below, paste it into the command window and press ENTER:
sc config AarSvc start= demand
3. Close the command window and restart the computer.
The AarSvc service is using the AarSvc.dll file that is located in the C:\Windows\System32 directory. If the file is removed or corrupted, read this article to restore its original version from Windows 10 installation media.