Just over the decade here. Bang on the dot of EOL for XP, that was it.....I jumped feet-first into the Linux sea, and quickly learnt to swim in very short order. The learning curve was nowhere near as steep as everyone reckoned....which to me indicated just how entrenched in our ways so many of us become. Actually, I date my Linux use to the previous year, when I'd already begun playing around with our 'Pup' on the elderly Dell lappie. Hence, why I say the decade.
Humans are definitely creatures of habit, and computer usage patterns are one of those things that confirm it.
I blew Windows out of my life literally overnight. This action was probably helped by the fact that I had never had the need of Windows for anything specific OR job-related. I'd been keeping personal stuff on external drives for years, so there was nothing to have to save from XP itself.
At my work, we had absolutely no use for such things; even in our small office, a computer would have been total overkill. (Notwithstanding the fact that our guv'nor was way too tight with money to waste any on such 'frivolities', especially at late 80s / early 90's prices..!)
To date, I've really enjoyed every minute of it. Haven't had so much fun in years.
Sad reflection on the state of my life, I guess...!!
Mike.