"Blue" for the masses is finally here
If you want to check out Win 8.1 preview and use the new old Star Button check out the following links before you mess up your Win 8 install...
A few potentially handy links for those interested in the Windows 8.1 preview:
Download link for the Windows 8.1 preview
Windows 8.1 FAQ (read before you install)
List of processors a nd devicessupported (and not) with the Windows 8.1 preview (Note: this is likely to change by RTM)