Several users are reporting Windows 8.1 fails during the upgrade. The first solution is turning On Windows updates and be sure that update: KB2871389 is installed on your computer.
The second problem may come from your Windows Edition. The Windows 8 Enterprise, is not supported via Store or you have installed any cracked version.
If you are ruining windows 8 you can upgrade for free from Windows Store. Upgrade to Windows 8.1
There will be three Editions for Windows 8. Microsoft announced this news from official Windows blog. There are made major changes to Win8 updated Windows Explorer, New Task Manager and new metro interface. Windows 8 Consumer Preview is Available for Free download and if you didn’t have tested yet, you can download a copy.
For PCs and tablets powered by x86 processors (both 32 and 64 bit), there will be two editions: Windows 8 and Windows 8 Pro.
Windows RT is the newest member of the Windows family – also known as Windows on ARM or WOA.
Windows 8 Customer Preview introduced a new interface in "metro" style where the classic Start button isn’t anymore implemented in the way we usually have seen on previews version of Windows. To access the new "Start", you have to hold the mouse on the right bottom side of the screen, but if you want to bring it back, Stardock has created a free software, called Start8, where the main function is bringing back the Windows Start menu. From Start8, you can also Shutdown, Run commands or Search apps.
Windows 8 will come with a built in messenger and other apps from essential pack. If you want to download a free copy of Windows 8, get images disk from our previews post. With the new messenger you will be able to communicate with your friend with the Windows 8 Sign in Account. Live Connect is the new name for Windows Live services.
You can launch Windows 8 Messenger from the Start Menu or Apps list!
Right Click on the screen for the pop-down menu and select Online (if you are offline, but usually once you start Windows 8 your status will be online )
Windows 8 Consumer Preview ISO files (.iso) are provided as an alternative to using Windows 8 Consumer Preview Setup. If you are on a PC running Windows and want to install the consumer preview on another partition, another PC, or a virtual machine, we recommend you download Windows 8 Consumer Preview Setup and use the built-in tools for converting an ISO image into installation media, such as a DVD or USB bootable flash drive.