Family settings code?

To reset your xbox 360's parental passcode please go here:
https://support.microsoft.com/devices and register your device via serial number on the back of the console (on a sticker) and then on the devices page with your device listed, select More actions, select Reset passcode, and then follow the instructions
to reset your passcode. You will be presented with two button combination sequences on the website that must be entered on your console (and the specific combination is connected to your console) while on the following page: Settings > System > Console Settings
> Console Info. This will reset your console and the family passcode but will not erase profiles, games or game saves, but will require some settings to be entered again.

To do this your Microsoft account must be an adult account and the console must be registered in your name.

Hello,

Please visit this site here. Once you're there click Billing & Memberships, under Microsoft Account click Forgot Parental Control Code,
and finally click Chat with Microsoft Support. They can assist you with resetting the family settings passcode you have on your console.

Here is a link to the support article that will tell you the steps on how to reset the family passcode on your 360

https://support.xbox.com/en-US/xbox-360/security/forgotten-parental-controls-pass-code

Hello,

If you can't remember the family settings passcode, or the reset question answer then you will need to
reach out to phone support.

You can contact Xbox Support so they can help give the reset key. http://support.xbox.com/en-US/contact-us