It “might” be able to...unless they have encrypted their hard drive. Then it is no use unless you can reverse socially engineer their password.
I say might, because I think there may be permissions associated with files that will preclude trying to copy or open them. I could be wrong there.
Good advice for something to try, mounting the drive as a non-boot volume.
A lot better than some of the Delta Bravos on this thread who couldn’t give a crap about a Freeper looking for help on a subject.