Aadesh, Thank you for the suggestion, but I regret no change: apparently the latest update is 2015.006.30094. I have also tried uninstalling, reinstalling and then applying the update, but no change. I'm reluctant to try and clean my system completely because of the on-line registration process. Whatever the significant inconvenience of this scrolling problem, I don't want to find myself locked out of Acrobat because I've cleaned some important piece of data and so the installer / registration process thinks this is a new install or something similar.. Regards, MH ... View more

Using 2015.006.30094 on Win10 Pro x64, I have exactly the same problem. Repairing the installation (more than once) and rebooting has no effect. The problem occurs whether using the mouse wheel (preferred) or the cursor keys. ... View more