QOTW: Which desktop operating system(s) do you use?

[silent]

win 10 pro on all desktops and laptops.

[moshpit]

Windows 10 Pro, retail copy. Works as advertised. Windows 7 had a smoother launch, but 10 has cleaned up it's act well enough to make due.

[Presto86]

Just Windows 10 home.

[ddg3595]

Windows Pro for Workstations on both my PCs. 64-bit, of course.

[albert89]

Win7. No crashes, no dodgy updates or spyware.
It works just like it should.

[spacein_vader]

Win7. No crashes, no dodgy updates or spyware.
It works just like it should.

No spyware? You must have turned off automatic updates then and chosen not to install:

KB3068708 -- Update for customer experience and diagnostic telemetry
KB3075249 -- Update that adds telemetry points to consent.exe in Windows 8.1 and Windows 7
KB3080149 -- Update for customer experience and diagnostic telemetry
KB3022345 -- Update for customer experience and diagnostic telemetry

And several more. I couldn't be bothered to keep track of which updates were safe to install any more, particularly when they started bundling them all as monthly roll up patches. So I went full penguin

[daddacool]

W10 Pro (on my Surface Pro 4)
AmigaOS (on old laptop, for poking around on)
Ubuntu on my GPD Pocket 2 (better battery management apparently)

[Core2Extreme]

Windows 8.1 on my 2500k desktop. Ran XP on it for awhile, but eventually wanted support for DX10/11 games, and wanted something that would be stable and predictable, so went with 8.1 instead of 10.

Windows 10 on my new 8750H gaming laptop. Tried setting up 8.1 on it, but ran into enough driver issues that I went back to the factory default, and it other than one borked update that required a reinstall right shortly after switching to 10 last fall, it hasn't been too bad.

Windows XP/Linux Mint 18.3 32-bit dual-boot on my Core 2 Extreme laptop. It's scary how livable an 17+-year-old OS is these days. Netflix, Spotify, web surfing, software development... among my common use cases, only Steam actually requires the Linux dual-boot.

I'll probably put Mint or Ubuntu on a Zen desktop when I build one, and figure out which version of Windows to run later. Probably will try to install XP for the lulz, then try 8.1 and hope for the best, and if that fails decide if I should see test the waters of how realistic skipping 10 on a main box is, or not.