Secondary Logon (seclogon) Service Defaults in Windows XP
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.
Default Settings
| Startup type: | Automatic |
| Display name: | Secondary Logon |
| Service name: | seclogon |
| Error control: | ignore |
| Object: | LocalSystem |
| Path: | %SystemRoot%\System32\svchost.exe -k netsvcs |
| File: | %SystemRoot%\System32\seclogon.dll |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\seclogon |
Default Behavior
In Windows XP it is starting automatically along with the operating system. If the Secondary Logon fails to load or initialize, Windows XP start up proceeds without error messages, but information about the failure is being written into Event Log.
Restore Default Startup Configuration of Secondary Logon
1. Run the Command Prompt.
2. Copy the commands below, paste them into the command window and press ENTER:
sc config seclogon start= auto
sc start seclogon
3. Close the command window and restart the computer.
The seclogon service is using the seclogon.dll file that is located in the C:\Windows\System32 directory. If the file is removed or corrupted, read this article to restore its original version from Windows XP installation media.