In the Xbox world, your gamertag is your alias. It consists of an alias, an optional avatar or photo (called a gamerpic), and some information to represent you when playing games and sharing with others in the Xbox community.

When you login in to your account, you use your display name. It'll also appear on any Windows 10 devices that you've registered into with your Microsoft Account, and it's the name that people see when you send emails or join an Outlook.com group. This name may differ from the display name of your local account.

If you're logged in to your Microsoft account, here's how to update your display name:

1. Sign in to the Microsoft account website and navigate to the Your info tab.
2. Select Edit name under your name. Select Add name if no names are currently listed.
3. Enter the desired name, then type the CAPTCHA and click Save. Some names may be prohibited if they contain prohibited words or phrases. If you see a problem when entering your name, use a nickname instead.

You may use either your first or last name.

But that's not very creative.

Consider a name that corresponds to the type of games you enjoy playing. If you play basketball, you might want to consider a nickname like Dunk King. If you really have no gamertag ideas just try out a nickname generator.

No. Live subscription is tied to the Gamer Tag.

You can have multiple Gold accounts on one console but only one gold per Gamer Tag.

Two Microsoft accounts cannot be merged, although they can be linked and used within the same account. Aliases can be added to your Microsoft account. An alias is a nickname for your account, such as an email address, phone number, or Skype name.