[nebster]

Do you mean the key for XP? If so, you can recover it using a command or through the registry.

You can use rainbow tables to crack passwords for XP which was super quick though!

[persedes]

Ah it was the password for the admin account and not the key!

[meinheld111]

Afaik you could just set a new admin pw using a livecd and some tool.

I wonder if that’s still possible.