How to change my username not my gamer tag?

Ok how can I change only my display/classic username without changing my main gamer tag

That is your classic gamertag. You'd have to try changing your gamertag and if it gives you the option, it'll let you change that one independently. That doesn't always happen for some reason though.

Hello there!

Could you please explain exactly what you mean by saying Windows Player Tag, do you mean you Xbox gamer tag?

For the Xbox gamer tag, you get a system generated on at first then you have the option to change it to whatever name you wants for free. The free gamer tag change can only be done once on your account, if you try to change it again you will have to pay.

Here is how you can change your gamer tag How to change your Xbox gamertag | Xbox Support.

There are some specific games that set you up with usernames that are different than the gamer tag you have and Minecraft is one of them. You can to contact Minecraft support so that they can help you change the username.

Why did my gamer-tag change? It really didn't offend nobody ( BIgBOyLuvMiLPhz )it was a funny gamer-tag to make people laugh and this was my first time actually getting reported. My friends gamer-tag were funny but when they got reported they had to change
there gamer-tag to something else or they couldn't play live at all and you gave them a (FREE GAMER-TAG CHANGE), how come I cant get that opportunity to change my gamer-tag?

i have question for you my old gamer tag is on my username and password for windows live id how do i get my new one on it