Hello people!
I've removed my hd and placed a new one.
I've put back the old one as slave (intending to keep it as slave), but when trying to enter my E:\docs&sets\username folder to get back my already existing data, I get: "Access not allowed".
I've done it before, and had no problem.
Note that i've been using a password to enter windows, and i don't remember if a password existed last time i did it.
Also note that it is impossible to put it back as master and make it password free, as i had blue screens that wouldn't let windows boot.
Thank you all.