Comment by actionfromafar

Same. I have a fondness for NT4.0. Very solid and very fast. Felt like an OS which stayed out of your way and just ran apps. I also tried NT 3.51, but didn't clock many hours on that system, but it felt even more solid and very smooth. Not much software was compatible with it though, so there wasn't much point trying to use it as a daily driver past its prime. NT4 I used probably way too long, installed cygwin on it, sshd, coaxed it to play games with unofficial versions of DirectX and Voodoo 5 and forced it to run newer versions of Visual Studio which really expected Windows XP or something.