Instructions
Power on the Xbox 360 and open the dashboard menu, if necessary.
Select "Family Settings" from the "My Xbox" section of the dashboard. If you have a "Family Pack" Xbox Live subscription, choose "Family Center" from the "My Xbox" menu instead.
Choose "Console Safety." An on-screen keyboard opens.
Enter your current pass code and push "Start."
Go to "Change Pass Code." A "Set Pass Code" menu appears.
Select "Change Pass Code." An on-screen keyboard appears again.
Enter your new desired password and push "Start." Enter the password and push "Start" again to confirm the change. You are redirected to the "Set Pass Code" main menu. You may also change the "Pass Code Reset Question" and "Pass Code Reset Answer" in this menu if desired. If you forget your password, you can answer your secret question to reset the pass code.
Choose "Done." The "Console Safety" menu appears.
Choose "Save and Exit" to save the password reset.