a) ask Bill, Merlin or Zarathustra
b) a normal Command-Prompt probably not (if it’s locked/protected in WIN), but the Command-Prompt in the RECOVERYConsole should be a bit more powerful (also has more wreckage potential)

I still don’t see why want to try a potentially dangerous and/or useless approach to this issue rather than

  • following specific removal instructions
  • using tools
  • or ignore it if no other signs point to infection (P.S.: is it just an empty (?) key ? or what’s contained in it… ?

but:

  • no risk no fun! &
  • on your own head be it…
    :wink: