ADE - "Error! Check Activation".?

Question

How do I check activation?  By dumb luck, experimentation, deleting authorization, re-authorization, deleting downloaded Overdrive books, downloading them again, I got 4.5 to work.  Still have no clue WHY I started receiving errors on 2.0 that drove me to download 4.5 & delete 2.0 and start messing around.  Cussing didn't help but I felt better.  ADE proves there is no "free lunch" or truly free ADE.  Users must agree to periodic torture sessions on non-helpful help sites.

Nanaky · Answer

Windows:

Close all applications.

Choose Start > Run.

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

Select the Adept key.

Choose File > Export.

In the Export Registry File dialog box, select Selected Branch under Export Range. Enter a name and location for the backup registry key, and then click Save.

Right-click the Adept key and choose Delete.

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.

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