This video is an update on Microsoft’s latest operating system Windows 10 Technical Preview, which is available for download in the following languages. English, Chinese and Brazilian Portuguese.
You can download the Windows 10 Preview on the 123myit.com website under downloads, see the link below.
If you want know more info on the Windows 10 Technical Preview see the official Microsoft webpage here.
You will be able to find out the expiry date on the your version of Windows 10 by going to the Start menu and in the Run box type Winver This will tell you what the expiry date is plus the version of any Windows OS that you are using.