LibAnswers

This error message occurs when you initially download an eBook to a computer or device not authorized with the correct Adobe ID. If you then authorize the device after downloading the book, you will get this error message when you try to open the book or download it again.

If your eBook was downloaded before you authorized your computer or device, or if the book was downloaded with a different Adobe ID, you won't be able to read this book. You'll need to return it and place it on hold again.

If you don't know which Adobe ID is the correct one, please contact Adobe for assistance. Adobe support can be found here: http://helpx.adobe.com/contact.html

You can also click Trouble signing in at the Adobe website.

Once you know your Adobe ID, you will need to de-authorize Adobe Digital Editions (if necessary) and then authorize with the correct information.

How to de-authorize Adobe Digital Editions on your computer

1. Open Adobe Digital Editions

2. Press <CTRL>+<SHIFT>+<D>

• Deauthorize Computer box will appear and say, "Are you sure you want to deauthorize this computer? If you have protected items in your Digital Editions library, they may no longer be readable."
• Select Deauthorize
• After selecting "Deauthorize" a message will appear stating "Your computer was successfully deauthorized. Restarting Adobe Editions will require you to reactivate your computer."
• Click on "Quit"

3. Adobe Editions will close.

Reauthorize your computer

1. Open Adobe Digital Editions

2. The Setup Assistant will appear, click "Continue" and then authorize/activate the computer with a new Adobe ID and password (that you created in the first step).

3. Close Adobe Digital Editions