Old Toshiba laptop asks for (non-existent) HDD password

I'm trying to wake up my old Toshiba Satellite 1410-604 laptop (bought in 2003) cause I want to use my old 35mm negative and slide film scanner which only runs on XP. Unfortunately, when I start the laptop it asks me for a "HDD password" which I'm fairly certain it never did before. I've thrown every root and admin password at it that I remember ever having used but with no success. Has anyone succesfully dealt with a similar problem? All suggestions are welcome.