How to reset Office 365 MFA / 2FA

2fa

Goal

Reset Office 365 MFA / 2FA due to a lost, stolen or replaced phone.

Solution

Open Office 365 Admin Portal https://portal.office.com/adminportal and click Active Users

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Click Multi-factor authentication

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Select the user you need to reset MFA / 2FA

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Click Manager user settings

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Click Require selected users to provide contact methods again then click save. The next time the users logs into their account they will be prompted for new MFA details.

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