Fix the Wacom pressure sensitivity in Photoshop
Have worked since Adobe CC2014 and recent Photoshop CC release 19.
If the pressure sensitivity inside photoshop does not show up and the drivers for the wacom tablet have been installed and works, then this could be the solution.
Open a blank notepad and type ind the following:
# Use WinTab
Save the file as :
C:\Users\[User Name]\AppData\Roaming\Adobe\Adobe Photoshop CC\Adobe Photoshop CC Settings\
You might have to turn off the windows ink in wacom drivers.