Windows 10 on all my PC's except my Media Center is running Windows 8.1 since WMC got removed from Windows 10. I would love to upgrade to Win 10 on that machine if I could add WMC to it.

Desktop: win7, Laptop1: win10, Laptop2: Linux Ubuntu

Windows 10 x64. Since 2015. It's really good, actually. Tried OS X for a while, but it's too restrictive for me.

I have a new laptop with Windows 10. I followed this guide to remove all the bloatware and find some other useful features/shortcuts: https://www.youtube.com/watch?v=9KFc6l8jrVs&t=6s

I have been using Mac OSX 4 years, before that, I was using Gentoo Linux for 12 years. Las time I used Windows as my main OS was Windos XP before the realease of Windows ME; and I'm still using Windows XP as a virtual machine or some times Windows 7.

Windows for life!

Windows 7 and Ubuntu on my main PC. Kali on a USB, and Mint on my laptop.

windows 10. i used xp and 7 and 10 is definitely the best one.

still win 7

Used all versions of Windows, tried linux once, but it's not my cup of tea.