Since today my sister has had problems logging into Minecraft. For the fact that I have been playing for a long time myself, I saw or noticed your problem for the first time.
Minecraft has been bought, she can log in normally on the website and on Mojang's website. Only the Minecraft Launcher gives some wrong email, which you can't change, actually you can't even give that email address. Even after downloading the launcher again, the problem was still there.
Even if you go to FAQ below, there's only one excuse that the page is not available.
I very much hope that someone can help me and my sister. I created this account just to be able to help my sister, so I hope it wasn't in vain.
So you have to enter the e-mail and the password just remove what is there right now
Click on GO BACK and then try to log in.
Read the question again
Click on
Achso sorry ok then contact support