Macbook locked. Cannot change security settings

I have a macbook that is password locked (we can't remember the password) and the security setup will not let me create an admin account to change users and / or settings. How can I rebuild the computer to eliminate the user and change the security settings? I can get to settings as long as I don't shut down the computer, but I can't change anything without a password. So far I have been leaving in sleep mode which does not require me to enter the password.

You can get replacement System Install & Restore CD/DVDs from Apple's Customer Support - in the US, (800) 767-2775 - for a nominal S&H fee. You'll need to have the model and/or serial number of your Mac available.
If you're not in the US, you may need to go through the regional Apple Store that serves your location to find the contact number. Here's a list of links to all of those - http://store.apple.com/Catalog/US/Images/intlstoreroutingpage.html Another resource: International Support Phone #s.
can I boot from dvd and rebuild the computer?
I don't see how, since you stated you do not have them.

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Solved!
Go to Solution.

Do I really need to set security for my wireless connection. I searched for available WiFi in my area prior to installing my network and none were available. Does that matter?
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Hi…
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