Because this is a secondhand Xbox 360 with an existing family-settings passcode, contact Xbox Support and request a preowned-console parental passcode reset.^1^
What to do
- Open Xbox Support.
- Select the options for Xbox 360, Family or parental controls, or the closest available category.
- Choose Contact us, chat, or a callback when offered.
- Explain that:
- The console is a preowned Xbox 360 Slim.
- Family Settings were enabled by the previous owner.
- You do not know either the passcode or the security-question answer.
- Have the console serial number and proof of purchase available in case Support needs to verify possession.
Do not attempt to recover the previous owner’s Microsoft account. The passcode should be reset against the console through the supported ownership process.
Self-service option, if the console can be registered to you
The online reset is available only when the Xbox 360 is registered under your adult Microsoft account:
- Sign in to your Microsoft account.
- Open Devices.
- Find the registered Xbox 360.
- Select Show details → Manage → Reset passcode.
- Follow the displayed console instructions.^2^
If the Xbox 360 does not appear under your devices or Reset passcode is unavailable, return to Xbox Support—the preowned-console procedure is the applicable route. A normal Microsoft account password reset will not reveal or bypass the console’s family-settings passcode.
References