I cannot even get signed in - why do you deny all 5 of my e-mail addys?

[canadianxstitcher]

I  have tried all five of my e-mail addresses and you tell me they are all already in use.   That is simply not possible.   I had ADE on my previous computer but it crashed and now you will not let me re-install it.    I use the e-mail address and password I had previously; you say it is already in use.   So I try FOUR other ones, at least two of which you could not possibly have even see and you say it is already in use.   Please.   I did try just not authorizing it but when I tried to add a book I just borrowed from the  library, I got that nasty error message saying it could not be done.   So now what do I do?    How am I to put new books onto my reader?   

[Nanaky]

Windows:

    Close all applications.

    Choose Start > Run.

    In the Open text box, type regedit and then press Enter. The Registry Editor opens.

    In the left pane of the Registry Editor, locate the following registry key: HKEY_CURRENT_USER\Software\Adobe\Adept

    Select the Adept key.

    Choose File > Export.

    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.

    Right-click the Adept key and choose Delete.

    In the Confirm Key Delete dialog, click OK.

    Close the Registry Editor.

    Open Adobe Digital Editions and reauthorize.

Macintosh:

    quit Adobe Digital Editions.

    Navigate to /Users//Library/Application Support/Adobe/Digital Editions and drag the activation.dat file to the trash.

    If you are using 10.7, see https://helpx.adobe.com/x-productkb/global/access-hidden-user-library-files.html

    Open Adobe Digital Editions and reauthorize.