kmode_exception_not_handled

What exactly is a kmode exception? The error code is
STOP: 0x0000001E (0xC0000005, 0x80E92349, 0x00000001, 0x01D24B2D)
kmode_exception_not_handled
CPUID: GenuineIntel 6.7.3 irql:1e Sysver 0xf0000565
This is a dual processor. And Pan Chinese Windows NT is NOT installed. I can’t get beyond the BSOD to install a service pack.

Any ideas?