Additional Microsoft Defender tools and services that provide security across various platforms and environments
Contact Microsoft Support from a different working Microsoft account and report an account takeover in which the sign-in alias may have been replaced, requesting an account-takeover review and providing evidence only through the private support session.^1^
1. Open an account-takeover support case
Since the recovery form has already failed several times, do not simply repeat it with the same information.
- On Windows, open Start → Get Help. Alternatively, use Microsoft’s public support page.
- Enter:
“Personal Microsoft account takeover — unrecognized passkey added, original username no longer recognized, Minecraft purchase affected.” - Select Contact Support, choose the affected Microsoft account/account-security product category, and then select an available contact method such as browser chat or callback. Contact options depend on product, scenario, operating hours, and subscription.^2^
- If sign-in is required, use another working Microsoft account. Make clear that it is only the contact account—not the compromised account.
- Ask the agent to:
- Record this as a suspected account takeover, not a forgotten-password case.
- Note that the original username now returns “account doesn’t exist.”
- Check whether the case qualifies for an account-takeover review.
- Give you a case number and identify the approved private channel for submitting ownership evidence.
Microsoft’s guidance specifically says to contact support when a previously valid username still produces “We couldn’t find an account with that username.”^3^
Support agents cannot manually change account details or send a password-reset link. Any restoration remains subject to Microsoft’s ownership-verification process.^4^
2. Keep the evidence tracks separate
Prepare a concise timeline and separate the evidence into these categories:
Security incident
- Original sign-in address and any former aliases
- Date/time of the unrecognized passkey notification
- The original notification, including its full sender and timestamp
- Approximate date of the last successful sign-in
- Devices and usual locations previously used
- Any unfamiliar address shown during a passkey or sign-in attempt
- Existing Microsoft support case numbers
A passkey notification confirms that a registration event was reported; it does not by itself establish that the primary alias was changed. However, aliases are sign-in addresses, and removing or replacing one can cause the old address to stop identifying the account.^5^
Ownership verification
- Previous passwords
- Name and birth information originally registered
- Xbox gamertag or Skype ID, if used
- Frequently used devices or Xbox console hardware ID
- Historical billing details
- Exact Outlook subject lines or contacts, if applicable
Microsoft recommends completing recovery from a previously used device and normal location and supplying as much historical service information as possible.^6^
Minecraft purchase
- PayPal transaction ID and transaction date
- Minecraft/Microsoft order number
- Purchase confirmation
- Edition and approximate purchase date
- Associated gamertag or Minecraft profile name
Do not post receipts, order numbers, unfamiliar aliases, passwords, recovery codes, or PayPal details in this public forum. Submit them only through the private case channel.
3. Treat Minecraft recovery as a linked but separate case
Minecraft access uses the associated Microsoft account, so restoring that Microsoft account is the primary recovery path. If account recovery cannot restore access, open a Minecraft Support case and provide the Microsoft case number plus proof of purchase for an entitlement review.^7^
The available guidance does not establish that Minecraft ownership can be transferred from an inaccessible Microsoft account to a new account. Ask Minecraft Support specifically whether any entitlement remedy is available; proof of purchase supports review but does not guarantee a transfer.
4. Secure unaffected accounts and devices
Before changing passwords elsewhere, run Windows Security → Virus & threat protection → Scan options → Full scan → Scan now. Microsoft recommends a full malware scan before changing credentials after a suspected compromise.^8^
Also change the password and enable two-step verification on:
- The original email mailbox
- PayPal
- Any account that reused the same password
If access is restored, immediately review recent activity, aliases, security information, passkeys, forwarding rules, and connected accounts.
References
- Microsoft account compromised: primary alias changed and original email no longer recognized - Microsoft Q&A
- Get Help for Microsoft personal account users | Microsoft Support
- My username and password have stopped working | Microsoft Support
- Account recovery unsuccessful | Microsoft Support
- Change the email address for your Microsoft account | Microsoft Support
- Help with the Microsoft account recovery form | Microsoft Support
- Get Help Signing into Minecraft with Your Microsoft Account
- How to recover a hacked or compromised Microsoft account | Microsoft Support