I use a computer in a work place where someone else has already installed
Digital Edition with a different Adobe ID. Therefore I cannot open my Digital Edition items with this computer. I have already uninstalled the software and reinstalled, but the other persons authorisation code is automatically linked again with the newly installed software.
How, can I read my bought digital books on this computer now. Or how can I change the authorisation code within a digital edition version?
Ctrl-Shift-D, (Cmd-Shift-D on mac) will bring up a dialog that will allow you to remove the authorization from the computer. Afterwards when you relaunch ADE it will ask you to authorize - make sure you do so with your AdobeID (the one that is tied to the books you want to read).