Microsoft Windows 8 release preview will be available to the public for downloading free of charge in first week of June 2012. Microsoft released Windows 8 of release preview is being presented . Microsoft announced on the occasion of the conference was held in Japan, by vice president of Microsoft corporate development Mr Chuck Chan. And hopefully will available at the end of the year in market, similar to preview-release Windows 8 will be the same.Download Microsoft Windows 8 release preview from Microsoft official website microsoft.com