"Ein Berechtigungs-Handler ist bereits unter diesem Namen registriert" - Was bedeutet das?
Thanks for reaching out.
The information shared above is not quite helpful in understanding what you are referring to and its context. Would you mind elaborating on the exact issue and steps performed at your end?
Is it in regards to the installation of Acrobat Reader?
Same questions apply. We can't help if we don't know what you're trying to do when you get this message.