Windows 10

[Doug Frisk]

Originally Posted by FlamingSpork

The reason we used the Technical Preview was because we couldn't easily obtain Windows 7 without paying Microsoft.

You're going to have to pay for that Windows 10 license eventually as well.

An OEM system builder license with full media is pretty cheap, almost certainly much cheaper than any hardware you're putting it on. http://smile.amazon.com/Windows-8-1-...dp/B00F3ZN2W0/

If that's too expensive, I'd suggest you use the provided classmate.