Capital letter gametag

The only way to change it would be to change the gamertag to something else and then change it back with the correct capitalization. You would have to pay twice.

First, check to make sure you aren't/ are, using capital letters where needed. Passwords are generally capital letter sensitive.

The Lagg is some letter are not in Capital but people see it in Capital

Are you sure the gamer tag isn't already in use by someone else who is using a capital letter? Using capital letters is no problem.

Hey there! Unfortunately from here we can't change your gamertag, but what you CAN do is change it yourself, http://support.xbox.com/en-US/billing-and-subscriptions/account-management/change-xbox-live-gamertag

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If that's not a route you would like to go, you may always try to re-download your profile! First step is to clear your cache, here's how:

1) Tap the Xbox Guide button on the controller, go right twice into Settings, pick System Settings.

2) Select Storage (or Memory).

3) Move over any hard drive or memory unit press (Y) on your controller and pick Clear System Cache.

4) When asked to confirm storage device maintenance, choose Yes.

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Delete profile from your console

1) Go to Settings

2) pick System

3) choose Storage

4) pick All Devices

5) choose Gamer Profiles

6) pick the gamertag

7) choose Delete, and

8) pick Delete Profile Only. This deletes the profile but leaves saved games and achievements. Now, re-download your profile.

Don't know how to redownload your profile?

1) Tap the silver Xbox Guide button

2) Select Download Profile (and if you don't see it, press the blue X button to make sure you're not signed in) and proceed with Profile Download.

3) Enter the Windows Live ID for your Xbox LIVE gamertag when asked.

4) Enter the password for the WLID.

4A) If your account is an Xbox LIVE child account, the parent’s Windows Live ID & password is required as well to download your profile.

5) Pick the storage device for your profile (choose your HardDrive you have one, or Memory Unit if you don't have a Hard Drive).

6) Now it will download it, just wait, and after it's done, it'll ask you to remember your password. I'd say yes normally.

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If you have any other questions let me know!

Let me please just remind you, that Xbox does not have a way to MANUALLY change your gamertag, so if the re-downloading does NOT work, unfortunately you're gonna have to change the actual gamertag.