Permission to transfer a library book from a computer to a Kobo reader

When I click on item info, I get a response that the item is authorized to a different account..  When I try to read I get a response that authorization is required.  When I seek authorization and type in my adobe ID (an email address), I get a response that it is the incorrect account number.  It is one I set up long ago.   In addition when I first downloaded the book from the library, I opened it to read.  Now I can't.  I also cannot return the book.  At one time in my ordeal, I sought an Adobe ID again and received a response that the computer is authorized an id was issued but I wasn't told what it is.   At another time, I sought a an suthorization and tyoed the id I/ve historically used and I ws advised to try another id as the one I typd in was in use.  I've never had this type of difficulty before.  I am  doing this on a Windows 10 computer and I am using an Adobe ID set up using another pre Windows 10 computer.  Would that have anything to do with my problem?