Adding a new printer to a windows 10 machine:
Click the windows icon bottom left:
Click the Cog symbol
Select 'devices'
printers and scanners
add a printer or scanner
*note this will always fail to find a printer but is still part of the process*
When the automatic search failes choose 'the printer that i want isnt listed
check the 'Select a shared printer by name' radial button and fill in the location for the desired printer.
for TWH this is \\TWHPCS01\TPHAPR01
for MGH this is \\MGHPCS01\RWF03PHARPR01
(change last numbers of the string to suit which printer you need)
then click 'next' twice
and set as default: