A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation
Contact Microsoft Support from a different working account and request an account-takeover review, explicitly stating that the unauthorized security-information replacement completed after the 30-day waiting period and the original username is no longer recognized.
1. Open an account-takeover case
- Use Microsoft’s hacked-account recovery page and start the Sign-in Helper: https://go.microsoft.com/fwlink/?linkid=2214157
- Enter the original email address and select the options indicating that the account was compromised.
- If the tool cannot recognize the address, use its agent/contact option. Microsoft’s guidance for the exact “We couldn't find an account with that username” condition is to contact support and tell the advocate that the username has stopped working.^1^
- Tell the advocate:
My personal Microsoft account was taken over. An unauthorized replacement of all security information started on August 1, completed on August 31, and the password changed on September 1. My original sign-in alias now returns “We couldn't find an account with that username.” Please open or escalate an account-takeover review for a replaced or removed primary alias. The account contains my Minecraft: Java Edition entitlement.
- Record the case number. If redirected to ordinary password reset, explain that password reset cannot identify the account under the original alias and ask whether the case qualifies for account-takeover review. That escalation matches the accepted resolution for the same replaced-primary-alias and unrecognized-username scenario.^2^
Support must verify ownership; agents cannot simply change account details or issue a password-reset link.^3^
2. Submit evidence only through the private case
Prepare these items, but do not post them in Microsoft Q&A or another public forum:
- Original Microsoft account address and any previous aliases
- Security-alert emails, including their dates and full message headers if requested
- Previous passwords
- Minecraft Java purchase receipt and transaction ID
- Realms receipt and transaction ID
- Minecraft profile name
- Approximate account-creation date
- Billing information requested by the recovery process
- Devices and locations previously used to sign in
- Existing support case numbers
The recovery form specifically uses historical account, password, service, billing, and device information to establish ownership. Microsoft recommends completing it from a previously used device and familiar location; results are sent to the working contact address supplied on the form.^3^
If support directs you to the Account Recovery Form, use:
Because the original username currently returns “account does not exist,” the support escalation should remain the main route rather than repeatedly submitting an unrecognized address.
3. What the username error establishes
An alias is an email address or phone number associated with a Microsoft account. Aliases share the account’s subscriptions, settings, storage, and password.[^4^](https://support.microsoft.com/accounts-billing/manage/how-to-fix-this-username-has-been-turned-off-error "How to fix "This username has been turned off" error | Microsoft Support")
The error means the original address is not currently recognized as a Microsoft account username.^5^ It does not, by itself, reveal whether the alias was removed, replaced, or the account was otherwise changed. Only Microsoft’s private account investigation can review the account record; Q&A contributors cannot inspect alias history.
Do not create a new Microsoft account using the old address while the takeover case is being investigated. A newly created account would be separate and would not contain the existing Minecraft purchase.
4. Minecraft Java license
Minecraft access on a computer is tied to the Microsoft account holding the entitlement. Minecraft Support directs compromised-account cases through Microsoft account recovery rather than providing a separate license-transfer recovery process.^6^
Therefore:
- Recover the original Microsoft account first.
- After recovery, sign in to the Minecraft Launcher with that recovered account.
- If the Java entitlement is then missing, contact Minecraft Support and provide the purchase and Realms transaction records through its private support process.
5. Secure the surrounding accounts and devices
Before changing recovered credentials:
- On Windows, open Windows Security → Virus & threat protection → Scan options → Full scan → Scan now. Microsoft recommends a full malware scan before changing a compromised account’s password.^7^
- Change the password of the email mailbox that received the security notices.
- Replace reused passwords on other services.
- Review that mailbox’s forwarding rules, recovery information, and active sessions.
- Enable two-step verification after access is restored.
Never provide passwords, verification codes, recovery codes, or complete payment details in a public post.
References
- My username and password have stopped working | Microsoft Support
- Microsoft account compromised: primary alias changed and original email no longer recognized - Microsoft Q&A
- Help with the Microsoft account recovery form
- How to fix "This username has been turned off" error | Microsoft Support
- How to check if your email address is a Microsoft account | Microsoft Support
- Troubleshooting Locked, Compromised or Stolen Microsoft Accounts ...
- How to recover a hacked or compromised Microsoft account | Microsoft Support