I have tried everything listed on the Adobe site but whenever I try to install Digital Editions I get the error message saying "Adobe Digital Editions 4.0 has encountered a problem and needs to close. How can it get it to run???
I had a similar problem with an older computer a couple of years ago. It was solved by installing ADE 1.72.
It is still available here:
Save the setup.exe to your hard drive then run it.
Retrieving data ...