I'm in a bit of a tizzy. A hard drive is encrypted with DCPP, bootauth obviously installed. The registry is kablooey, so it gets to where it needs to boot csrss.exe and crashes(no, it's not a virus

it's called user error ).... SO, I am able to bypass the bootauth with no problems, since I obviously know both passwords. My question is just as the title assumes, is there a way I can stop the boot process cold in its tracks so I can copy some much needed files off the hard drive........or am I just screwed? I can't rollback, already tried. bah. thanks peeps.
lk