batcmd.com Windows Vista Services

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

Startup Type

Windows Vista edition without SP SP1 SP2
Starter Automatic Automatic Automatic
Home Basic Automatic Automatic Automatic
Home Premium Automatic Automatic Automatic
Business Automatic Automatic Automatic
Ultimate Automatic Automatic Automatic

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

Secondary Logon logs on as LocalSystem and runs in a shared process of svchost.exe. If Secondary Logon fails to start, the error is recorded into the Event Log. Windows Vista 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 Vista edition and Service Pack, and then click on the Download button below.

2. Save the RestoreSecondaryLogonWindowsVista.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 Vista installation media.