It appears that version 4.x is "broken", but like the OP and other users who posted here I managed to finally solve the problem using version 3.0. Once you have version 3.0 installed on your computer, the process to authorize books is the same of version 4.x...
One more time - I finally figured out the Op's - It seems that ADOBE blocks SOME books that are DRM. DRM means that the Books CAN NOT BE COPIED - but can be read on the Computer. (Digital Rights Management or DRM is a...
It appears that version 4.x is "broken", but like the OP and other users who posted here I managed to finally solve the problem using version 3.0. Once you have version 3.0 installed on your computer, the process to authorize books is the same of version 4.x, except that wit...