Error message : "Check Activation"?

The other posts referenced show everyone having success by erasing the computer authorization (CTL-SHFT-D) then re-authorizing.

My ADE software is not allowing me to erase the authorization.I am using the correct password. I now get the message "Unable to Erase Authorization. Please try after some time." I retried again this morning and still same message. Very frustrating.

Running ADE Version 4.0.3.110333 on Windows 8.1 on HP Stream.

Hi! I have the same "check activation" error. Isn't the purpose of sw to be able to transfer our libraries to any computer/device with the same ID? How does that work? It seems impossible to recover books previously installed on another computer and it makes it less tempting to buy new ones - at least until the problem is solved. Suggestions anyone? Thanks!

Reinstalling ADE and deactivating/reactivating my device didn't change anything.  I still get "Check Activation" pop-up.

Found the answer on another discussion:

"Please try de authorizing and then re authorize(do this only if you remember your ID and password). Hope this helps" It worked for me!

i talked to my library and they advised that there had been problems with version 4.0 and that there was a new version 4.0.2. I deactivated the authorization and uninstalled the old adobe and then deleted the downloaded books from my computer. i restarted my computer and reinstalled the newer version of adobe and downloaded another book - when prompted i authorizes the computer. this worked..... i still could not open the old books, but is now works with new downloaded books. i think i also had a problem with the adope password as i think i gave two differatn ones when i reinstalled previously - so make sure you have the correct password.

hope this helps

gail

Unfortunately I'm having the same problem. I could download from the Kobo store but cannot get e-books from the library downloaded on to my device. Keep getting same error message of "Check Authorization" . I have tried redoing the authorization process and re-downloaded Digital editions. Neither of these helped in any way. Please let me know if anyone can figure this out.

Sadly, I have no answer - just another user facing the same issue.  I have adobe digital editions 4.0 installed on windows 7 x64 Ultimate.  When I try to add an .acsm to my library I get a popup with "Error! Check Activation."  This is after I have authorized with my Adobe ID, and I checked that I was indeed authorized and indeed I was:

Help!  Please!!!

Matt Cushman