What does the Adobe Digital Editions (ADE) error message "Unable to download" mean?

Question

When I try to process a .acsm file that I borrowed from my library, I get the error message "Unable to download, Error getting License. License Server Communication Problem: E_ACT_NOT_READY". Uninstalling & reinstalling ADE and all its files did not help. I tried to deauthorize my account, but I keep getting the error message "Unable to Erase Authorization. Please try after some time." Is there any workaround for either of these problems (downloading from a .acsm file or deauthorization)?

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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