How to get your name to not be seen on Xbox

Hi Karina,

An Xbox Gamertag won't appear in your emails as a signature or display name in any way. I've personally never seen that before, especially if the Xbox account uses a Microsoft account that was created using a third-party email (Gmail, yahoo, work emails).
If you use a Microsoft affiliated email address (outlook, hotmail, msn), then the display name you see when you login to your Microsoft account could be seen in emails. Do you use a third party or Microsoft affiliated email?

Follow this support article, https://support.microsoft.com/en-us/help/4027722/microsoft-account-how-to-change-your-display-name,
for further instructions on how to change that display name.

What is the Air Marshalls? The person who hacked your account added me and I seen the name was changed. Sorry about that man, Xbox's security has flaws still. Hope you get your account back!

Hi there, Smwutches is indeed correct. We're afraid if you're unable to choose a specific gamertag, you'll need to select a different one.
Games for Windows Live, Xbox games for Windows, Zune, and Xbox Live all use the same gamertag system but not the same chat system. Gamertags are also tied to services like Zune or Games for Windows LIVE. If a gamertag doesn't exist on Xbox, it might
be in use on one of those services. If you try sending the gamertag you want a friend request and it says it’s not a valid gamertag that just means it isn’t used on Xbox LIVE, but it could be used for Zune or Games for Windows Live.

The only way to get the tag would be for the owner to change it to something else, or if he does not sign into the account for 5 years (starting in 2016) it will be released. Keep in mind that the tag system is in use on other Microsoft services. So even
if it's not in use on an Xbox, it may be in use somewhere else.

Dude how did you get your foruma picture? im sure iv seen that halo 10 thing on my xbox rewards