Icon Adobe Reader DC on taskbar is wrong

Found it here : https://forums.adobe.com/thread/1113673?tstart=0

1. Remove, unpin or delete Adobe Acrobat icon from the Start Menu, the desktop and (if you have it there) from the taskbar.
2. Go to C: > ProgramData > Microsoft > Windows > Start Menu > Programs and you’ll find the “sinner” “Adobe Acrobat XI Pro” with the
   wrong icon. The that looks like a shortcut. Delete it!.. Close the
   window.
3. Go to C: > Program Files (x86) > Adobe > Acrobat 11.0 > Acrobat… and find Acrobat.exe
4. Right click on Acrobat.exe > Send to > Desktop
5. Right click again on Acrobat.exe > Pin to Start Menu… and close the window
6. Right click on Acrobat.exe – shortcut (that you just created on your desktop) > Copy
7. Go back to: C: > ProgramData > Microsoft > Windows > Start Menu > Programs… and Paste the shortcut here (you need administrator
   privileges for that)
8. Rename this shortcut from “Acrobat.exe – shortcut” to “Adobe Acrobat XI Pro”
9. Close the window
10. Now if you open any PDF document, the right icon will appear on the taskbar.