Hello guys, I am creating this thread to share with you my method of making your xbox live account unjackable and unlockable so you no longer have to play online and worry about having your xbox live account locked or hacked. I have made this tutorial as simple as I could possibly make it so I hope everyone can get good use out of it. I have provided a video below the tutorial of me showing you guys that it does indeed work and how to test it on your own account.
So let’s begin, shall we? 
How this works:
The basics of this method is that what you are doing is locking your own account for support agents to not even being able to pull up your account when you or anyone else tries to call using your gamertag, as shown below in the video…the agent takes 10+ minutes talking to his supervisor because he doesn’t know what to do. The best thing about this method is that it can simply be enabled/disabled by removing the text that you put in your contact information.
F.A.Q
Q. Can this get me banned?
A. Simple answer to this question is no, this cannot get you banned. This is the same method tier 3 agents use to lock your account when it’s reported stolen just we are using it now to our advantage.
Q. Will this affect my game-play in anyway?
A. No, this does not affect the way you play on your account whatsoever.
Q. What account did you use when showing us that this works in the video?
A. I created a brand new silver account on xbox.com then just applied the method.
The Tutorial
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You will want to start by going to “xbox.com” and signing in with the account or creating an account that you would like to protect.
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Create a new tab and navigate this second tab to “login.live.com” and login with the same account that you did in the first tab.
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On the first tab, on xbox.com while you are logged in go to My Xbox > Accounts.
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On the second tab, on login.live.com while you are logged in to under the “Country/region” second, click “Change”.
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Now going back to the first tab, you should be under My Xbox > Accounts click the “Billing Account Information” link.
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Edit the following information as depicted below. Without the quotations
First Name: “XBOX SUPPORT DO NOT ASSIST WITH XBOX RECOVERY”
Last Name: “XBOX SUPPORT DO NOT ASSIST WITH XBOX RECOVERY”
Address Line 1: “XBOX SUPPORT DO NOT ASSIST WITH XBOX RECOVERY”
Address Line 2: “XBOX SUPPORT DO NOT ASSIST WITH XBOX RECOVERY” -
On the second tab, edit the information exactly as above just only do address Line 1 and address line 2.
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On tab 1 and tab 2, you can leave City, State, Phone number and Contact email address the same as it already is or enter something random/fake.
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Press the save button on both tabs and walla, you’re now protected against locking/jacking.
What the account information should now look like, using an example account:
just listen to the video, then you will understand.