I can't change permission with Adobe ID to read the book on another device

[FLY31]

I purchased an ebook and opened it with "adobe digital edition", authorizing my pc without entering the adobe ID. Now I would like to view the book on another pc, but I can't if I don't first associate it with an Adobe ID. Unfortunately I can't associate the Adobe ID to this book from my "device 1" because it tells me that I have already used the Adobe ID on another pc (device 2). On "pc 2" I have already tried to cancel the authorization, but the situation does not change. If I try to open the book it gives me the following error: E_LIC_ALREADY_FULFILLED_BY_ANOTHER_USER. At the same time, if on PC 1 (where I can read the book, without Adobe ID) I try to change the authorization by associating the Adobe ID, it tells me that I cannot because the same Adobe ID has already been used on another PC .

What can I do?

Thank'you.

[Einan 91]

Hi, try this and then let me know if it worked:

1- Unauthorize the ADE on the old pc.

2- Uninstall ADE from the old pc.

3- Go to "Start"- "Run", type "regedit"

4- Go to "HKEY_CURRENT_USER" - "Software" - "Adobe"

5- Cancel the folder "Adept"

6- Cancel the folders "Adobe Digital Editions" and "Adobe Digital Editions 4.5"

7- Try to authorize the new pc again.

[FLY31]

I followed the instructions you suggested, result:
- on the new pc authorizes me the Adobe ID but continues to give me the same error if I try to open the book
- now I can't even read it on the old pc