I have recently bought a new PC with windows 7 and have installed Adobe Digital Editions v4.0.3
I authorized the computer using my existing adobe ID, the same one used on my old PC that ran windows XP.
I cannot seem to open any ebooks (files with the .acsm extension) or add them to the library. I get this unhelpful little error dialog:
Error! Check Activation.
I have tried to deactivate the computer (in order to retry activation), but that fails too with the error:
Unable to Erase Authorization. Please try after some time.
Please Adobe.... why does nothing work????
Ok so, I finally managed to remove the failed activation and then I reactivated after which I could read the ebook.
I used this method here: I can't de authorize my computer. It just keeps saying to try again later.
to deactivate, and then repeated the activation process.
Adobe, surely many many people have this problem with a new install, and to have to resort to editing the registry in order to fix it is just madness.
Why does the activation fail the first time, and why then does deactivation also fail? PLEASE FIX YOUR PRODUCTS.