Account hacked email name changed

If the account was hacked and the alias or backup security info was changed, the supported recovery path is:

1. Scan the PC for malware before changing anything In Windows Security, open Virus and threat protection → Scan options → Full scan → Scan now.
2. Change or reset the password If sign-in still works, change the password immediately. If not, use the password reset flow.
3. Check account settings that attackers commonly change Review connected accounts, forwarding, and automatic replies and remove anything unfamiliar.
4. Restore the email address/alias if sign-in is possible Go to Your info and edit account info at https://account.live.com/names/manage.
   • Select Add email to add the correct address back.
   • Select Remove next to any attacker-added address if allowed.
5. If sign-in is not possible or security info was changed Use the Microsoft sign-in helper or account recovery flow:
   • Hacked account helper: https://go.microsoft.com/fwlink/?linkid=2196140
   • Recover account / reset password: https://account.live.com/password/reset
   • Guided support for alias/sign-in changes: https://go.microsoft.com/fwlink/?linkid=2216784
6. If the original address is no longer recognized Try any other alias or phone number previously on the account. Also verify the email domain was entered correctly, such as .com vs .co.uk.
7. Contact support if recovery tools do not resolve it Use Contact Microsoft Support and select Get Help → Contact Support.

Important: Microsoft support agents are not allowed to send password reset links or directly access and change account details. Account recovery and security changes must be completed through the official recovery and sign-in tools.

References:

• How to recover a hacked or compromised Microsoft account
• Change the email address for your Microsoft account
• My username and password have stopped working
• What happens if there's an unusual sign-in to your account