Unable to download eBooks purchased online

[ramjetejmar]

I Installed ADE 4.5 with O/S Windows 10. I purchased eBook from Kobo store and trying to download them to my eReader. When ADE opens, I get a window telling me that there is an update available which I click on. However this is followed by an error message telling me to "check activation". I checked activation and it is telling me that my computer is authorized and I did receive an eMail with instructions on how to proceed. I have tried different version without success. After un-installing them and re-installing the latest version,  and restarting the computer, I still got the same results.  Anyone else has a similar problem. Looking for some help with my thanks.

[Nanaky]

1. Close all applications.
2. Choose Start > Run.
3. In the Open text box, type regedit and then press Enter. The Registry Editor opens.
4. In the left pane of the Registry Editor, locate the following registry key: HKEY_CURRENT_USER\Software\Adobe\Adept
5. Select the Adept key.
6. Choose File > Export.
7. In the Export Registry File dialog box, select Selected Branch under Export Range. Enter a name and location for the backup registry key, and then click Save.
8. Right-click the Adept key and choose Delete.
9. In the Confirm Key Delete dialog, click OK.
10. Close the Registry Editor.
11. Open Adobe Digital Editions and reauthorize.