Download Windows 8 CTP (Community Technical Preview) here
There is a slim chance that Microsoft may release the Windows 8 CTP or Windows 8 Community Technical Preview in a few days.
They may do it at the WWPC (World Wide Partner Conference) happening in Los Angeles this coming week.
In the event that they do release the Windows 8 CTP here, you will be able to download it on this page.
I’ll post the link here if the Windows 8 CTP is released and you can download the Windows 8 CTP here.