Windows NT 4.0 Service Pack 4, offers an option for an immediate system reboot.
If your press Shift+Ctrl+Alt+Delete, the system will stop all running apps, without saving any inprocess data, and reboot your computer. Event ID 6008, The previous shutdown at <HH:MM> on <date> was unexpected., will be posted to the System Event Log.
To activate this option, navigate to:
Add Value name EnableQuickReboot as a type REG_SZ entry and set the text string to 1 (true).
You must restart your computer for the option to become available.