Microsoft have released a preview version of its updated Windows O/S into the public domain, which is available to download http://windows.microsoft.com/en-us/windows-8/download-preview
Microsoft’s servers seemed to be overwhelmed, and installing the update took around two hours. Also, be advised that if you do install the Preview, you will need to reinstall all of your Windows Store apps once you update to the final version of Windows 8.1, which isn’t due until later this year.
But if you’re brave, go ahead and take it out for a spin. We’ll be interested to hear your thoughts.