While I have long moved on to Windows 7, I still interact with XP on those old XP machines hooked up to the PLCs at work and we have no plans to upgrade them to Win7/8 because some of the control software is XP-only.
Without an internet connection, these things won't have to worry about hack attacks.
And, per tradition, we kept the Bliss wallpaper. Heh.
Did you know currently there is a free Operating system being developed called Haiku? It is based off an operating system created by BEos Inc. in the 90's. That company had created an operating system able to multi task greatly without system slow down. I tried haiku recently and it blew my mind how fast it boots, and multi tasks, I even had it on an Pentium 4 3.0GHZ processor with hyperthreading which is a virtual processor in the operating system eyes, and 3GB of ram. in all honestly Microsoft needs to reinvent its products for more plausable use. In honesty they should of kept the tile layouts for touch screens, and stuck with the desktop gui for desktop and laptop based PC's. i'm leaning more towards Unix/Linux and Apple nowindays just because Microsoft has been dying since Bill gates stepped down from ceo position in the mid 2000's. only products i liked from them was anything before vista. Nice thing about Unix based operating systems, is there is little to no Viruses made for those operating systems. Since when do you ever hear about an apple crushing virus? Did you know the only reason the original Xbox system of the early 2000's was stopped being manufactured was due to a lawsuit between Microsoft and their graphics processor provider, Nvidia? Microsoft tried to go under Nvidia and get their chips half off, and in the end the court said Nvidia had to continue providing them the chips until full stop of the Xbox manufacturing in 2005. Microsoft has been known for monopolistic practices, and illegal stunts.