Situation 1: Renew password
1. Login to portal.office.com using your credential provided
2. Go to Settings and choose Change your password.
3. Enter your old password. Create a new password and confirm it.
4. Select Submit to finish and change your password.
Situation 2: Forgot password
1. Go to portal.office.com and key in your email address.
2. Click on the Forgot my password option.
3. Enter the character required from the picture provided then click on Next.
4. Key in your phone number and choose on the option to receive the code. In this example I have use to receive the code via text. Once done, click on Text.
5. Enter the code receive and click Next.
6. Choose the new password that easy for you to remember but it must be a complex password for the security purpose.