Windows XP reminder
I use PC's to run our equipments control systems. XP has been the best as far as stability goes. Due to one software package we use we still dual-boot to Win98 in some cases. If you like XP and your software runs under it, keep using it. I wouldn't let lack of support make me switch to something new.
Win8 lol, not anytime soon.
Odd, I never had an issue with Win 7 and drivers till I switch out for my i5 2400 system. The network controller was new and there wasn't a bundled driver for it yet. Everything else worked just fine.


