Right click on digital Edition and choose option run as Admin.
Then download the file and try to move to the reader.
Hi I did as you said but I still get an error message when I try to open the ebook on the Kobo ereader as follows. I am borrowing the epub book from the library.
It says that it is not authorized for use with your Adobe ID. Sign in with authorized Adobe ID and try again. But they both match with the same email address for Adobe ID. Thanks for any further assistance.
Start Digital Edition.
Press ctrl + shift + d.
Accept that should deauthroize.
Then go to help > authorize Computer
Login with your Data.