So my dad bought an iMac from my mom, but she does not know the admin password anymore. I read on the apple forums that I should look here for help on resetting the password. The iMac runs OSX 10.6.3. I would really appreciate any help. Thanks
Ah, yes. I forgot to mention that sadly we do not have the installation disks.
Then you should try to get the media somewhere.
You can also try this method:
https://discussions.apple.com/docs/DOC-5381