"Error check activation" for my new book

[vincentc33483591]

I bought a book on saturday, but everytime I got de error message "Error check activation" I have my record on Adobe write on ADE, et I can't change it. What does this message means ? Thank for your answers.

[vincentc33483591]

I tried to cancel Authorisation as said 8 days ago in other question, but I got message 'It's impossible to unauthorize, Please try again later!' ( I try to translate this from French: "Impossible de proceder à l'annulation. Veuillez réessayer plus tard!"  This message had occured on every try for four days. I really don't know what to do.

[shreya]

If due to some reason, you are unable to deauthorize ADE, follow the below steps:

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

ADE will be deauthorized now.

Now Authorize ADE again.

Windows:

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

Right-click the Adept key and choose Delete.

In the Confirm Key Delete dialog, click OK.

Your authorization will be deleted.

ADE will be deauthorized now.

Now Authorize ADE again.