Local Session Manager - Windows 11 Service
Core Windows Service that manages local user sessions. Stopping or disabling this service will result in system instability.
This service also exists in Windows 10 and 8.
Startup Type
| Windows 11 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 21H2 | Automatic | Automatic | Automatic | Automatic |
| 22H2 | Automatic | Automatic | Automatic | Automatic |
| 23H2 | Automatic | Automatic | Automatic | Automatic |
| 24H2 | Automatic | Automatic | Automatic | Automatic |
Default Properties
| Display name: | Local Session Manager |
| Service name: | LSM |
| Type: | share |
| Path: | %WinDir%\system32\svchost.exe -k DcomLaunch -p |
| File: | %WinDir%\System32\lsm.dll |
| Error control: | normal |
| Group: | COM Infrastructure |
| Object: | LocalSystem |
Default Behavior
The Local Session Manager service is running as LocalSystem in a shared process of svchost.exe. Other services might run in the same process. If Local Session Manager fails to start, the error is logged. Windows 11 startup proceeds, but a message box is displayed informing you that the LSM service has failed to start.
Dependencies
Local Session Manager is unable to start, if at least one of the following services is stopped or disabled:
Restore Default Startup Type for Local Session Manager
Automated Restore
1. Select your Windows 11 edition and release, and then click on the Download button below.
2. Save the RestoreLocalSessionManagerWindows11.bat file to any folder on a local drive such as SSD or a hard disk.
3. Right-click the downloaded batch file and select Properties.
4. Check the Unblock checkbox and click OK.
5. Right-click the batch file again and select Run as administrator.
6. Restart the computer to save changes.
Note. Make sure that the lsm.dll file exists in the %WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows 11 installation media.