When I try Add to library i get Error! Check Activation. What can I do?

Hi Inez,

You will likely need to manually delete the activation file to get this error cleared. Please follow these instructions:

You must have administration authority.

On Windows it can be found here:
Open Windows Registry by using the command prompt and typing 'regedit' or by opening the start menu and searching for 'regedit'.

Search for the following folder:
HKEY_CURRENT_USER\Software\Adobe\Adept\Activation

The 'Activation' folder can be entirely deleted.

On Mac it can be found here:
In Finder, find the 'Go' option on the menu bar and click 'Go to folder' and type the following in:

~/Library/Application Support/Adobe/Digital Editions/

Delete the activation.dat file within the 'Digital Editions' folder.

Restart ADE and it should be deactivated at this point. You should be good to sign back in.

Mac OS

1. Open Adobe Digital Wditions.
2. Press Command+Shift+D to deauthorize Adobe Digital Editions.
3. Select Erase Authorization.
4. Click OK and authorize again.

Windows

1. Open Adobe Digital Editions.
2. Press Control+Shift+D to deauthorize Adobe Digital Editions.
3. Select Erase Authorization.
4. Click OK and quit Adobe Digital Editions.