i can't access to my microsoft account, i have deleted my authentication app as well

Because the Microsoft Authenticator app was deleted and sign-in is blocked, use the official recovery and support paths for Microsoft accounts.

1. Start with the Sign-in Helper
   • Go to the Sign-in Helper tool: Sign-in Helper.
   • Enter the email address or phone number used for the Microsoft account.
   • The tool checks for known issues and guides through the appropriate recovery steps.
2. Try standard password and account recovery
   • If the password is forgotten or not working, use the Recover your account flow: Recover your account.
   • Enter the email, phone, or Skype name and follow the prompts to:
     1. Choose where to receive a security code (email, phone, etc.).
     2. Enter the code to verify identity.
     3. Set a new password.
   • If the username or email is reported as not found, follow the guidance in My username and password have stopped working.
3. If verification options don’t work
   • If none of the verification options are recognized or accessible and two-step verification is not turned on, use the Sign-in Helper again as instructed in Help with the Microsoft account recovery form.
   • If two-step verification is turned on and there is no access to any verification method (no phone, email, or app), support cannot bypass this or send manual reset links. This is explicitly restricted to protect the account.
4. Use the Microsoft account recovery form
   • If prompted, fill out the Account recovery form: Account recovery form.
   • Before filling it out:
     • Ensure there is a working email address that can receive messages about the recovery request.
     • If possible, complete the form from a device and location previously used to sign in (home or office).
   • Provide as much accurate information as possible so Microsoft can verify ownership.
5. If the account might be compromised
   • If there is suspicion that someone else has access to the account, follow the guidance in How to recover a hacked or compromised Microsoft account:
     1. Scan the PC for malware using an antivirus or Windows Defender.
     2. Change or reset the password using the official password reset links.
     3. After regaining access, review connected accounts, forwarding, and automatic replies to remove any malicious changes.
6. If still locked out with 2-step verification enabled
   • For accounts with two-step verification enabled where no recovery methods are available, the recovery form and support cannot override 2FA. This is stated in Help with the Microsoft account recovery form.
   • In such cases, continue using the Sign-in Helper and recovery form as the only supported paths and wait for the review result.

References:

• I can't sign in to my Microsoft account
• My username and password have stopped working
• Help with the Microsoft account recovery form
• How to recover a hacked or compromised Microsoft account
• Can't sign in to the Outlook mobile app
• How to go passwordless with your Microsoft account
• Can't sign in to my email - Microsoft Q&A
• Unable to change password in my Outlook - Microsoft Q&A
• How Do I Regain Access to My Account After Losing Access to Microsoft Authenticator? (Urgent Request). - Microsoft Q&A
• Authenticator locked and cannot access at all after replacing phone - Microsoft Q&A
• How do I send an email to Microsoft about my account being hacked and taken over by <removed> ? - Microsoft Q&A