Hi I am running win2K on a Dell optiplex gX400.
I started getting the wont power off after shutdown but re-boots itself.
I reset the bios settings to trap any errors and now on shut down I get the blue screen of death as shown below.
Any help or advice will be appreciated, thanks

STOP: 0x0000000A ( 0x00000000, 0x00000002, 0x00000001, 0x8042c257)
RQL_NOT_LESS_OR_EQUAL
** Address 8042C257 base at 80400000
Date stamp 450c3c8f - ntoskrnl.exe

The problem appears to be with ntoskrnl.exe, which is required for Boot up.
Try running sfc /scannow.
You will need your Win 2000 os disk.