How do I re-scan two-factor authentication barcode

If you have had your two-factor authentication reset, you will be required to re-scan the barcode within the Google Authenticator app.This will guide you through removing and re-scanning the two-factor authentication barcode:

1) Click the Authentication app icon:

2) Click the pencil icon (circled in the image)

3) Then tick any codes starting with 'EdAware' then press delete (both highlighted in blue)

4) Confirm the deletion

5) click Begin Setup

6) click scan barcode

7) Scan the barcode displayed on your screen and enter the 6 digit code that is on your phone in this field and click continue