engine - 5:11 pm on Jun 26, 2013 (gmt 0)
We previously announced that Windows 8.1 will be a free update for Windows 8 consumers later this year through the Windows Store - but today we are providing an opportunity for people to take a first-hand look at many of the new features and improvements with the Windows 8.1 Preview.Windows 8.1 Preview Arrives [blogs.windows.com] Before you install the Windows 8.1 Preview, it is also highly recommended you backup any files you have on your PC or tablet first. Please see the Windows 8.1 Preview FAQ beforeinstalling, which includes information on how to go back to Windows 8 if you need to. There are certain cases in which you will not be able to go back to Windows 8 after installing the Windows 8.1 Preview so please read the FAQ before proceeding.
Microsoft Explains Windows 8.1 Upgrade Procedure [webmasterworld.com]
Windows 8.1 - Now fudging the Start Button [webmasterworld.com]
Is Microsoft About to Relent and Bring Back The Start Button and Boot To Desktop [webmasterworld.com]