Null Service Defaults in Windows XP
Default Settings
| Startup type: | System |
| Display name: | Null |
| Service name: | Null |
| Service type: | kernel |
| Error control: | normal |
| Group: | Base |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Null |
Default Behavior
Null is a kernel device driver. In Windows XP it is starting right at Kernel initialization. If the Null fails to start, the technical information about the error is added to the Event Log. Windows XP startup should proceed, but a message box should be displayed informing the user that the Null service has failed to start.
Restore Default Startup Configuration of Null
1. Run the Command Prompt.
2. Copy the commands below, paste them into the command window and press ENTER:
sc config Null start= system
sc start Null
3. Close the command window and restart the computer.