How to read an ACSM file?!

Question

I need help! I bought a book (document ending is .acsm) and I'm not able to add it to the library, it says it can't download. "Error getting License. License Server Communication Problem: E_ACT_NOT_READY"

So, I was told by Kobo, to deauthorize Adobe Digitial Editions from my macpro, following the steps below:

1) Launch Adobe Digital Editions

2) To Deauthorize the Computer hit Command+Shift+D

Which I have done but it tells me "Unable to erase authorization. Please try after some time." What should be doing? HELP!

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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