how to change my phone number in my hotmail account?

For a personal Microsoft account such as Hotmail/Outlook.com, the phone number used for verification is managed in the account security settings.

If access to the account is still available:

1. Open the Security tab of the Microsoft account: https://account.microsoft.com/security
2. Select Manage how I sign in.
3. Review the listed verification methods.
4. Select Add a new way to sign in or verify.
5. Add another method such as:
   • a recovery email address
   • Microsoft Authenticator
   • a passkey
6. After the new method is confirmed, remove the old phone/security method if it is no longer valid.

Important details:

• The option to add a new phone number may not be available for personal Microsoft accounts.
• Microsoft is phasing out SMS for personal account authentication and recovery.
• Up to 10 verification methods can be added.
• Do not change all security info at the same time, or the account may be restricted for 30 days.

If verification codes are not arriving:

• Check that the code is being sent to the correct mailbox or phone.
• Do not make repeated code requests, because unusual activity can temporarily block code delivery.
• If the phone blocks texts from unknown numbers, change that setting and request another code.
• VOIP numbers cannot be used for sign-in or verification codes; a mobile number is required.
• In some cases, delivery delays happen because of regional traffic and resolve automatically after some time.

If access to the current phone number or other security info is lost:

1. Start signing in to the Microsoft account.
2. At Verify your identity, select I don't have any of these.
3. Follow the prompts to replace the security info.
4. If all security info is replaced, there is a 30-day wait before sign-in is allowed.

If the sign-in page says the phone number is already linked to another Microsoft account:

• Select Transfer if that option is shown and the number should be moved.
• If Transfer is not shown, select Change number and use a different number.
• If the number is newly acquired, the transfer option may appear after 30 days.

If sign-in is blocked and self-service does not resolve it, use the Sign-in Helper tool or Contact Support. Support agents cannot send verification codes, password reset links, or change account details.

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