I've downloaded Adobe Acrobat Pro 9 as a 30-day trial. When 15 days or so have passed, I've decided to discontinue my use and uninstalled the trial version via Control Panel - Programs and Features. However the program refuses to go away. When I install Acrobat Reader 9 it tells me that I already have Adobe Acrobat Pro and should decide to choose one as the default PDF file-handler. Now once in a while when I open a PDF file the Pro trial window would pop-up and ask me to enter a key or choose the trial version. When I choose the trial version it then says that an error has occurred when loading the trial information, or something like that.
I've looked for the Pro folder/files throughout my computer and found nothing. I've tried Microsoft's Windows Install Clean Up utility and removed Pro from the program list there, however that did not change anything. I still get the trial pop-up and the error message that follows (see attachments).
If the executable is removed, then it is not possible to run it anymore. Therefore the uninstall did not really remove everything.
Can you check if there is anything left in Program Files\Common Files\Adobe?
If you really cannot find what's running, try Process Monitor from Sysinternals to see what's running when you open a PDF file.