When you download an e-book, using Adobe Digital Editions 1.7 to 1.7.2, you receive the error "E_ADEPT_INTERNAL."
Navigate to /Users/<User Name>/Library/Application Support/Adobe/Digital Editions and drag the activation.dat file to the trash can.
- If you are using 10.7, see Access hidden user library files | Mac OS 10.7 Lion.
Disclaimer: The following task requires you to modify the Windows registry. The registry contains system-related information that is critical to your computer and applications. Before you modify the registry, make a backup copy of it. Adobe doesn't provide support for problems that arise from improperly modifying the registry. For more information about the Windows registry or the Registry Editor, see the Microsoft Help and Support site at http://support.microsoft.com.