if i sign in with one email to get Minecraft java edition can I change email and keep it or do I have to repurchase it. the reason is because i have Minecraft on my sisters account but don't want to repurchase Minecraft
Each account is tied to a specific e-mail and that's it. I'm not sure how you'd go about changing what e-mail is associated with an account, I never tried it. If your sister has the account then it's hers, you will need to get your own account by purchasing a new copy under another e-mail address.
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