Can't de-authorize my Mac

Question

Here is the problem:- I bought an acsm format book and can't add it to the library.My error code is "Unable to download. Error getting License. License Server Communication Problem: E_AUTH_BAD_DEVICE_KEY_OR_PKCS12"- I thought ok, maybe by ADE version is too old, or having recently had to re-install all my Mac from a back-up, maybe something to do with it. - so I downloaded and installed the latest version 4.5.9, but same exact problem.- so I thought maybe I should de-authorize and re-autorize the computer. But the de-authorization does not work !!The error message goes: "Unable to erase authorisation. Please try after some time." !! Seriously ?What can I do to save my problem ? Main one being to add new books to the library but which could have something to do with my de-authorization issue.Thanks in advance

Nanaky · Answer

Windows:

    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..

Macintosh:

    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.

Sign up

To post, reply, or follow discussions, please sign in with your Adobe ID.

Sign in to Adobe Community

To post, reply, or follow discussions, please sign in with your Adobe ID.

Scanning file for viruses.

This file cannot be downloaded