Unable to authorise Adobe Digital Editions on new laptop

I received a new laptop, but I am unable to authorise Adobe Digital Editions on my new laptop. I cannot remember the correct password and am unable to change the password. I followed the instructions to change the password, but there is no option to change my password on my profile.

The passwords for my company have been "federated" a few years ago, and that might be the problem. 

Can anybody assist?