Update: With Windows 10,download windows 10, given a launch, , windows and the latest preview build #10041 just released on March 18, the new Operating system is coming along soon. The latest: Microsoft makes universal apps easier to understandable, plus IE and Spartan move even further apart.
Microsoft’s Windows 10 Technical Preview is available through its Windows Insider Programs website. You will need a Microsoft account to get it, and it’s worth bearing in mind that it’s not the finished product, so it will be a bit rough around the edges.
Download Microsoft Windows 10