How to return access to the Win8.1 account?

Question

System administration

Greetings. Essence of a question, a computer under control of windows8.1. Previously, I was in the domain, I didn’t have rights to install programs, I reset the password for the local admin, but the trouble is, Thunderbird was configured in the previous account (domain), the person just needs access to the mail (he doesn’t remember the data =__=) how to return \ log in to the previous account.
PS
control userpasswords2 shows only local accounts.
In short, people, help =)

Answer 1

log in as local administrator and copy the Thunderbird profile
c:\Users\%username%\AppData\Roaming\Thunderbird\Profiles\

Answer 2

Well, what prevents you from logging in under a domain account? resetting the admin password does not affect domain accounts