I just reinstalled my laptop from Windows 10 to Ubuntu 16.04 LTS and I didn't have any backup for it.
Although,the latest Adobe Digital Editions is not support on Ubuntu 16.04 LTS.
So I tried the PC with Windows 10 that I use everyday,logged in with my Adobe account and till my purchased ebook is unseen.
As ebooks for Adobe Digital Editions could be downloaded one time.
Is that means I will never get my ebook back?
Why don't you just band the ebooks with the particular Adobe account?