Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
If access is blocked because the verification code is being sent to an old phone number, select I don't have any of these on the sign-in screen and follow the prompts to update or add new security info.
If a message appears asking to make sure a security code can be received, the security info must be verified or updated. That prompt can be skipped for 24 hours at a time, but after seven days from the first notice, updated or verified security info is required before sign-in can continue.
Do not change all security info at once, because the account may be restricted for 30 days.
For Microsoft account sign-in problems, use the Sign-in helper: Start sign-in helper
If additional assistance is needed, use Contact Microsoft Support and select Get Help: Contact Microsoft Support
Support agents are not allowed to send password reset links or access and change account details.
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