Windows Licensing Monitoring Service (WLMS) Defaults in Windows 10

This service monitors the Windows software license state.

Default Settings

Startup type:
Windows 10 Home 1507N/A
Windows 10 Pro 1507N/A
Windows 10 Education 1507N/A
Windows 10 Enterprise 1507N/A
Windows 10 Home 1511N/A
Windows 10 Pro 1511N/A
Windows 10 Education 1511N/A
Windows 10 Enterprise 1511Automatic
Windows 10 Home 1607N/A
Windows 10 Pro 1607N/A
Windows 10 Education 1607N/A
Windows 10 Enterprise 1607Automatic
Windows 10 Home 1703N/A
Windows 10 Pro 1703N/A
Windows 10 Education 1703N/A
Windows 10 Enterprise 1703Automatic
Windows 10 Home 1709N/A
Windows 10 Pro 1709N/A
Windows 10 Education 1709N/A
Windows 10 Enterprise 1709Automatic
Windows 10 Home 1803N/A
Windows 10 Pro 1803N/A
Windows 10 Education 1803N/A
Windows 10 Enterprise 1803Automatic
Windows 10 Home 1809N/A
Windows 10 Pro 1809N/A
Windows 10 Education 1809N/A
Windows 10 Enterprise 1809Automatic
Windows 10 Home 1903N/A
Windows 10 Pro 1903N/A
Windows 10 Education 1903N/A
Windows 10 Enterprise 1903Automatic
Windows 10 Home 2004N/A
Windows 10 Pro 2004N/A
Windows 10 Education 2004N/A
Windows 10 Enterprise 2004Automatic
Windows 10 Home 20H2N/A
Windows 10 Pro 20H2N/A
Windows 10 Education 20H2N/A
Windows 10 Enterprise 20H2Automatic
Windows 10 Home 21H1N/A
Windows 10 Pro 21H1N/A
Windows 10 Education 21H1N/A
Windows 10 Enterprise 21H1Automatic
Windows 10 Home 21H2N/A
Windows 10 Pro 21H2N/A
Windows 10 Education 21H2N/A
Windows 10 Enterprise 21H2Automatic
Display name:Windows Licensing Monitoring Service
Service name:WLMS
Service type:own
Error control:critical
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WLMS

Default Behavior

Windows Licensing Monitoring Service is a Win32 service. In Windows 10 it is starting automatically when the operating system starts. Then the Windows Licensing Monitoring Service is running as LocalSystem in its own process of wlms.exe. If Windows Licensing Monitoring Service fails to load or initialize, Windows 10 attempts to record the error details into Event Log and restart the PC, using the Last Known Good configuration. If the Last Known Good configuration cannot be applied or working improperly, Windows 10 startup process halts with a Stop error. If you disable or delete the WLMS service, Windows 10 won't start.

Restore Default Startup Configuration of Windows Licensing Monitoring Service

1. Run the Command Prompt as an administrator.

2. Copy the commands below, paste them into the command window and press ENTER:

sc config WLMS start= auto
sc start WLMS

3. Close the command window and restart the computer.

The WLMS service is using the wlms.exe file that is located in the C:\Windows\system32\wlms directory. If the file is removed or corrupted, read this article to restore its original version from Windows 10 installation media.