batcmd.com Windows 7 Services

Secondary Logon - Windows 7 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 10, 8, Vista and XP.

Startup Type

Windows 7 edition without SP SP1
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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 runs as LocalSystem in a shared process. It shares an executable file with other services. If the Secondary Logon fails to load or initialize, the error is recorded into the Event Log. Windows 7 startup should proceed, 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 7 edition and Service Pack, and then click on the Download button below.

2. Save the RestoreSecondaryLogonWindows7.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 7 installation media.