Re: Adobe shows downloading. It does not. I get: PREPARING INSTALLATION, PLEASE

Do you need any features of the new version?

There are lots of bugs in ADE2.0.  Try replacing ADE2.0 with the older but more reliable v1.7.2.

(You can have them both installed at once if you like.)

Version 1.7.2, it is a little difficult to find, available on Adobe site for Windows and for Mac.

http://helpx.adobe.com/digital-editions/kb/cant-install-digital-editio ns.html