batcmd.com Windows 10 Services

Secondary Logon - Windows 10 Service

Enables starting processes under alternate credentials. If this service is stopped, this type of logon access will be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start.

This service also exists in Windows 7, 8, Vista and XP.

Startup Type

Windows 10 edition 1507 1511 1607 1703
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Default Properties

Display name:Secondary Logon
Service name:seclogon
Type:share
Path:%WinDir%\system32\svchost.exe -k netsvcs
File:%windir%\system32\seclogon.dll
Error control:normal
Object:LocalSystem
Privileges:
  • SeTcbPrivilege
  • SeRestorePrivilege
  • SeBackupPrivilege
  • SeAssignPrimaryTokenPrivilege
  • SeIncreaseQuotaPrivilege
  • SeImpersonatePrivilege

Default Behavior

The Secondary Logon service is running as LocalSystem in a shared process of svchost.exe. Other services might run in the same process. If Secondary Logon fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the seclogon service has failed to start.

Restore Default Startup Type for Secondary Logon

Automated Restore

1. Select your Windows 10 edition and release, and then click on the Download button below.

2. Save the RestoreSecondaryLogonWindows10.bat file to any folder on your hard drive.

3. Right-click the downloaded batch file and select Run as administrator.

4. Restart the computer to save changes.

Note. Make sure that the seclogon.dll file exists in the %windir%\system32 folder. If this file is missing you can try to restore it from your Windows 10 installation media.