Want to play my computer is better. I have 18 Dells running WINDOWS XP 24/7/365 controlling my process network. Not one BSOD or hardware failure in 6 years and this is in a dirty. cutting fluid fumes and temperature hostile environment - not some office.
Are they connected to the Internet? And from what you say they are not used by people daily. . . pretty much dedicated machines doing the same things over and over. Right?