Zoom Button of the Microsoft Natural Ergonomic Keyboard 4000 doesn't work in Acrobat Reader DC

I connected the Natural Ergonomic Keyboard 4000 to my PC, installed all drivers and the software. Acrobat Reader is running on the newest Version. The Zoom In and Out Button of the Keyboard doesn't work. In all other programs the Zoom buttons works perfectly. The only diffence i know is, that the shortcut of zooming in and out on Adobe reader is differnt to all other programs.(Strg 1 and Strg 0 instead of Strg + and Strg -)

So is there a way to change the Shortcuts for zooming or has anybody a clue how i can fix this Issue?