3 Replies Latest reply on Aug 7, 2017 12:37 AM by Nanaky



      I use my Adobe Digital Editions really often and never had any problem.


      Today, I tried downloading a book from the same site I always download it (public library) and it says: E_AUTH_BAD_DEVICE_KEY_OR_PKCS12


      I tried to desinstall and reinstall, but it doesn't work.

        • 1. Re: E_AUTH_BAD_DEVICE_KEY_OR_PKCS12
          Nanaky Level 5



              Close all applications.

              Press WINDOWS + R.

              In the Open text box, type regedit and then press Enter. The Registry Editor opens.

              In the left pane of the Registry Editor, locate the following registry key: HKEY_CURRENT_USER\Software\Adobe\Adept

              Remove the Adept Folder.

              In the Confirm Key Delete dialog, click OK.

              Close the Registry Editor.

              Open Adobe Digital Editions and reauthorize..




              quit Adobe Digital Editions.

              Navigate to /Users//Library/Application Support/Adobe/Digital Editions and drag the activation.dat file to the trash.

              If you are using 10.7, see https://helpx.adobe.com/x-productkb/global/access-hidden-user-library-files.html

              Open Adobe Digital Editions and reauthorize.

          • 2. Re: E_AUTH_BAD_DEVICE_KEY_OR_PKCS12

            I am having the same problem as many adobe digital users have had, with a new twist.  I was unable to download materials from the public library, using cloud library.  Using instructions from this forum, I deauthorized my computer.   Now, when I try to reauthorize my computer, I receive the message


            Activation Server error-code E_AUTH_BAD_DEVICE_KEY.

            Digital Editions encounter an error on the activation server.


            I'm sure I have the correct password because I changed it today when I began to have problems and needed it to log into this forum.


            Could you help me with this?


            Elaine Lewis

            • 3. Re: E_AUTH_BAD_DEVICE_KEY_OR_PKCS12
              Nanaky Level 5

              Has you try the steps which i have write?