Microsoft has released the technical preview of the upcoming Windows 10 OS for pre-release testing, evaluation and feedback. It is not necessary to enumerate all its features here, as all of us are reading news and know about Start menu, virtual desktops and so on. If you have a Windows 7-compatible PC, you can install Windows 10 there, it should run smoothly. Although Tech Preview is designed for PC experts who are comfortable downloading unfinished software, you might be interested in testing it right now. Here are Windows 10 Technical Preview direct download links for ISO images.