Windows 8 Release Preview ISO files (.iso) are provided as an alternative to using Windows 8 Release Preview Setup.
If you are on a PC running Windows and want to install the release preview on another partition, another PC, or a virtual machine,
we recommend you download Windows 8 Release 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.
You can find additional information, including a list of supported upgrades, in the FAQ.
Note before you download: Windows 8 Release Preview is prerelease software that may be substantially modified before it’s commercially released.
Microsoft makes no warranties, express or implied, with respect to the information provided here.
Some product features and functionality may require additional hardware or software.
An ISO image must be converted into installation media stored on a DVD or a USB flash drive.
Instructions are provided on this page.
Developer tools are available for download from Windows Dev Center (http://msdn.microsoft.com/windows/apps/br229516)
Important: If you decide to go back to your previous operating system, you'll need to reinstall it from the recovery or installation media that came with your PC, which is typically DVD media.
If you don’t have recovery media, you might be able to create it from a recovery partition on your PC using software provided by your PC manufacturer.
Check the support section of your PC manufacturer’s website for more information.
After you install Windows 8, you won’t be able to use the recovery partition on your PC to go back to your previous version of Windows.
64-bit (x64) Download (3.3 GB) (http://go.microsoft.com/fwlink/?LinkId=251532) Sha 1 hash — 0xD76AD96773615E8C504F63564AF749469CFCCD57
32-bit (x86) Download (2.5 GB) (http://go.microsoft.com/fwlink/?LinkId=251533) Sha 1 hash — 0x8BED436F0959E7120A44BF7C29FF0AA962BDEFC9
Product Key: TK8TP-9JN6P-7X7WW-RFFTV-B7QPF