windows does not start… REGISTRY_ERROR

When I turn on my computer, I get the blue screen of death. It says that there is a registry error and that I should restart in safe mode to look for and problems with things that I have currently installed. Problem:

I can’t start in safe mode, safe mode with networking, safe mode with a command prompt, or go back to my last work settings. Nothing works at all. The Windows support sight was worthless as usual.

The error number is as follows:

***STOP: 0x00000051 (0x00000004, 0x00000001, 0xE1AAE248, 0x00007DD0)

Help is greatly appreciated.