Recovering Account without logging in

So I installed the windows 10 install of PSO2 and made an account. I've uninstalled for a long time and I'm hoping to link to Steam. Is there any way for me to link accounts without fully installing the windows 10 version, getting my code, then uninstalling it again?

Unfortunately, you have to log in to the Windows 10 version in order to link it to Steam.

alright.. well that account is lost forever then. Thanks for your help!