You do realize that pretty much all systematic trading is done on linux servers? If your shop uses windows for your trading boxes, you are an exception.Of course Linux has its place (my previous comment was meant to be cynical) but not in financial trading
My shop uses Linux for all of our server needs, Windows for the desktop (cause it runs Bloomberg, really) and OSX for developers. So I do have experience across the spectrum and I totally understand why people hate Windows.
It's the bizarre combination of poor design, lack of stability, bondage and restraint etc. Windows 10 bitches when disconnected from the internet and it couldn't connect to Microsoft's servers. Microsoft can remote uninstall software; I don't want Microsoft to have that power. My machine is mine, not their. Also, if Microsoft can do it, eventually a hacker will be able to do it too. The same argument can be made for forced updates.
I don't like ads. If I am using a free service, I am willing to see ads so the company can generate revenue. If I pay $200 for an operating system, especially one with no customer support, they don't need to be putting advertising on my computer. If you need MORE revenue, sell support like those who offer free operating systems.
Forget about privacy, Windows 10 only allows you to change a portion of privacy settings. Want access to most of them? Install O&O Shut Up to access them. Be sure to back up your settings in this program, Windows Update allows Microsoft to change those settings at will.
For all of these reasons, I use OSX at home. It's a proper unix (stable, solid shell, secure by design) but it runs Word and Excel; when I need windows (for Bloomberg) I run Windows 7 in a virtual box. If/when OSX is gonna get too sour (Apple is obviously going down that road too), I will probably switch to Linux.