System Event Notification Service (SENS) Defaults in Windows 11
Monitors system events and notifies subscribers to COM+ Event System of these events.
Default Settings
| Startup type: | Automatic |
| Display name: | System Event Notification Service |
| Service name: | SENS |
| Service type: | share |
| Error control: | normal |
| Group: | ProfSvc_Group |
| Object: | LocalSystem |
| Path: | %SystemRoot%\system32\svchost.exe -k netsvcs -p |
| File: | %SystemRoot%\System32\sens.dll |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SENS |
| Privileges: |
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Default Behavior
System Event Notification Service is a Win32 service. In Windows 11 it starts automatically during the operating system startup. Then the System Event Notification Service logs on as LocalSystem and running in a shared process of svchost.exe. If System Event Notification Service fails to start, the failure details will be recorded into Event Log. Then Windows 11 should boot up and notify the user about the SENS service startup failure.
Dependencies
System Event Notification Service cannot be started, if the COM+ Event System service won't start.
If System Event Notification Service doesn't work properly, the COM+ System Application service can't start.
Restore Default Startup Configuration of System Event Notification Service
Before you begin doing this, make sure that all the services on which System Event Notification Service 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 commands below, paste them into the command window and press ENTER:
sc config SENS start= auto
sc start SENS
3. Close the command window and restart the computer.
The SENS service is using the sens.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 11 installation media.