This is a good news for windows Operating System user, that Microsoft just announced for Window 10 technical Preview. At the current time window 8.1 is running. They skipped window 9 and announced for window 10. If you are familiar with window’s previous version 8.1 then you can understand better changes done by Microsoft in window 10. You can download window 10 from given link : http://adf.ly/sZXMV.
I make all thing easy by creating a video of how to download window 10 technical Preview ISO image file for installing and using window 10 environment.