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you don't have to reinstall but you have to use the disc to reset the password.<br />
the procedure is here:<br />
<a href="http://support.apple.com/kb/PH6317?viewlocale=en_US&locale=en_US" rel="ugc">http://support.apple.com/kb/PH6317?viewlocale=en_US&locale=en_US</a>
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you don't have to reinstall but you have to use the disc to reset the password.
the procedure is here:
http://support.apple.com/kb/PH6317?viewlocale=en_US&locale=en_US [http://support.apple.com/kb/PH6317?viewlocale=en_US&locale=en_US]

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If you no longer have a disk, you can boot into single user mode.<br />
Hold &nbsp;Command+S when you boot.<br />
<br />
fsck -fy<br />
mount -uw /<br />
passwd USER_NAME<br />
<br />
<br />
<a href="http://osxdaily.com/2011/04/25/change-admin-password-mac/" rel="ugc">http://osxdaily.com/2011/04/25/change-admin-password-mac/</a>
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If you no longer have a disk, you can boot into single user mode.
Hold  Command+S when you boot.

fsck -fy
mount -uw /
passwd USER_NAME


http://osxdaily.com/2011/04/25/change-admin-password-mac/ [http://osxdaily.com/2011/04/25/change-admin-password-mac/]

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ChilternPC - My user id try those instructions. When he got to the point where you double click on the icon to install Mac OS X which he did, it automatically prompted him to put &nbsp;in the password that he doesn't have. &nbsp;What does he do now?
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ChilternPC - My user id try those instructions. When he got to the point where you double click on the icon to install Mac OS X which he did, it automatically prompted him to put  in the password that he doesn't have.  What does he do now?

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Have a customer that has a MacBook running OS X 10.6.8. &nbsp;She changed her admin password, and then promptly forgot it. &nbsp;Is there anyway to recover it or reset it without having to reinstall the whole OS? She does have the reinstall disks.
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Have a customer that has a MacBook running OS X 10.6.8.  She changed her admin password, and then promptly forgot it.  Is there anyway to recover it or reset it without having to reinstall the whole OS? She does have the reinstall disks.

Have customer that has forgotten Mac admin password

Mac OS X is the desktop operating system from Apple Inc., found on Macintosh computers. OS X consists of a Mach/BSD-based kernel, operating system interfaces primarily based on FreeBSD and additional frameworks (written in C, C++ and Objective-C providing user interface and application-level services.