Windows NT reboots at Splash Screen

Ok, here is the deal. I have a server running Windows NT 4.0 SP6a. I recently downloaded the Security Update package from Microsoft's own Windows Update site and now my server is inaccessible. Well, I can't get into NT anyways. The server boots up fine as it always had before, but when it gets to the splash screen and the 'Hit CTRL-ALT-DELETE to login" box appears, the screen just goes black and the server reboots. The cycle is never ending. It just keeps rebooting and loading, rebooting and loading, rebooting and loading, etc... Does anyone have any clue what this might be and what can be done about it. Comments, Suggestions, anyone....

 

Try a last known good boot. Press F8 key just after the boot menu and the blue loader screen appears.

 

No good! The server boots to the point where I believe it is started to activate services. The splash screen is displayed and the login box is actually there for a few seconds before the whole thing reboots. Is there a way to stop the services from loading on startup?

 

Not with native Windows NT. There are 3rd party programs that allow you to do stuff like that. check out the wininternals website for erd commander.ERD commander