I cannot access passkey and old email address on my account

Adrian Passmore 0 Reputation points
2026-10-09T17:16:21.22+00:00

I previously used the email address of adrian.p**********@blueyonder.co.uk on my Microsoft 365 account. I no longer have access to that email or associated passkey and therefore cannot log in to your products on my iPhone, iPad,

Microsoft 365 and Office | Subscription, account, billing | For home | iOS
0 comments No comments

1 answer

Sort by: Most helpful
  1. AI answer

    2026-10-09T17:16:37.27+00:00

    For a personal Microsoft 365 account, the supported recovery path is to use the Sign-in Helper tool first. It checks the email address or phone number entered and either identifies the problem or guides the next recovery steps.

    If the old email address is no longer accessible and the passkey is no longer available:

    1. Use the Sign-in Helper tool.
    2. If the account is recognized but the password or sign-in method no longer works, use Recover your account and complete identity verification:
      • enter the email address, phone number, or Skype name used to sign in
      • choose where to receive a security code
      • enter the code
      • set a new password
    3. If the username is not recognized, check for common issues:
      • confirm the correct email domain, such as .com vs .co.uk
      • check for spelling differences in the email name
      • try another alias or phone number that may be on the account
    4. If the old sign-in email cannot be remembered or confirmed, check devices or apps where the account was already signed in:
      • Windows 10/11: Start > Settings > Accounts > Email & app accounts
      • Office apps: File > Account and look for Belongs to
      • check email accounts for Microsoft receipts or subscription emails
    5. If passkey sign-in fails because the passkey is no longer valid on the device, choose Sign in another way, then after access is restored, set up a new passkey and remove old passkeys that no longer apply.

    If none of the recovery options work, use Contact Support from Microsoft Support. Support agents cannot send password reset links or change account details without proper validation.


    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

    Was this answer helpful?

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.