THERE ARE 4 DIFFERENT LOG ON NAMES ALL HAVE PASSWORDS IS THERE A WAY TO BYPASS IT. I BOUGHT THE COMPUTER FROM SOMEBODY & NOW I CAN’T GET IN TOUCH WITH THEM FOR THE PASSWORDS. WHAT CAN I DO?
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You need to enter terminal and create a new admin account:
1. Reboot
2. Hold apple + s down after you hear the chime.
3. When you get text prompt enter in these terminal commands to create a brand new admin account (hitting return after each line):
* mount -uw /
* rm /var/db/.AppleSetupDone
* shutdown -h now
4. After rebooting you should have a brand new admin account. When you login as the new admin you can simply delete the old one and you’re good to go again!
Hope this helps!