Yesterday — no, actually today — Microsoft released the Windows 10 developer preview. As a half-hearted Microsoft supporter, I couldn’t resist giving it a shot. First I played around with it in a VM, but it felt off. Not satisfying, not happy. So I wanted to try it on real hardware. Commercial OS dev builds are usually somewhat reliable — more reliable than the betas of quite a few Linux distros (no offense) — so on this fine afternoon I upgraded my Surface Pro 3 to Windows 10.