e-mails from Microsoft are in Korean

Hello Nino, this is Manuela. I'm an Independent Advisor and community user like you, ready to assist with this.
Not a Microsoft employee.

I understand you’re having some trouble when receiving emails from Microsoft.
I would like to confirm if your language info is set to the one you want:
https://account.microsoft.com/profile

If affirmative, can you try changing it to English temporarily and verify if the emails from Microsoft you receive are still in Korean?

Hi, thanks for your response. I changed the display language and preferred language to English, but emails from Microsoft remain in the Korean language.

When Minecraft stopped working, I used my Microsoft account. And this issue happened after I changed my main alias from E-Mail 2 to E-Mail 1. I can play Minecraft if I log in with my E-Mail 2.

I purchased Minecraft on my Mojang account before the migration, but I don't use my mojang account and that Microsoft account that was migrated to.

With my Mojang account (E-Mail 1) migrated to Microsoft account (E-Mail 4) I bad the Java Edition. With my first Microsoft account (E-Mail 1, now 3) I had Minecraft Bedrock Edition. And with the other MIcrosoft account (E-Mail 2, now 1) I have both Java and Bedrock.

I purchased Minecraft Bedrock Edition on my Microsoft Account (E-Mail 1, now 3) from the Microsoft Store and I purchased Minecraft Bedrock Edition on my Microsoft account (E-Mail 2, now 1) from the Microsoft Store but the Java Edition I purchased from minecraft.net. On my Mojang account (E-Mail 1, now migrated to Microsoft Account with E-Mail 3) I bought Minecraft Java from minecraft.net.

No, it's not a spam e-mail, it's a legitimate e-mail from Microsoft to unlock more Halo 4 specializations.

Ok. Let's say I have 4 E-Mail adresses. 1, 2, 3, and 4. The Mojang account was created with E-Mail 1 and the Microsoft account also with E-Mail 1. But I had also a different Microsoft account with E-Mail 2. Once I changed the Microsoft account with E-Mail 1 to E-Mail 3. And then the Microsoft account with E-Mail 2 to E-Mail 1. After that I realised that Minecraft does't work with E-Mail 1. Then I remembered that I had a Mojang account with E-Mail 1 so I migrated this Mojang account to an another Microsoft account with E-Mail 4. I originally owned Minecraft with the Microsoft account with E-Mail 2(Now 1) and with the Mojang account with E-Mail 1(Now 4)

I'm sorry that it's really complicated.