To reset your password on portal.office.com, start by navigating to the portal's login page. Below the password field, select the "Can't access your account?" option. Choose whether the account is personal or work/school. You'll be prompted to enter your username and complete a verification process, such as receiving a code via email or phone. Follow the instructions to verify your identity, then set a new password. Make sure the new password is strong and unique. Once updated, you can log back into
portal.office.com using the new credentials.