In alt.comp.os.windows-10, on Wed, 21 Mar 2018 01:39:48 -0700, mike
wrote:

I booted the 1709 install DVD
Command prompt
regedit

Much to my surprise, the GUI for regedit came up.
But it's not pointed at the hard drive registry.
Is there a way to edit the registry on the drive
that won't boot?

It really has to use the GUI. I'm working remotely
and having another person type arcane commands
that I don't understand
over a bad phone link
to edit a key would be difficult.

Context...
The 1709 upgrade doesn't like one of the installed
programs and locks up at driver load...
Something about not less than or equal...
NO, I don't know anything more. I wasn't there.
I did get lucky and manage to get it fixed, but using regedit
to search the registry
would have made things very much easier.

Not sure if t his helps, especially since I don't remember the name of
the program, and it was probably winxp or vista, but there was a
registry editor that didn't insist on editing the active registry. You
could tell it took at any address.