To install Windows 8.1 Preview from
an ISO file, you must first convert the ISO file into installation media stored
on a DVD or a USB flash drive.
If you're using Windows 8,
follow these steps to install Windows 8.1 Preview from an
ISO file:
- Download the ISO (.iso) file.
- Double-tap or double-click the ISO file.
- Double-tap
or double-click setup.exe and follow the steps.
If you're using Windows 7,
the easiest way to convert an ISO file to a DVD is to use Windows Disc Image Burner. On a PC running Windows XP or Windows Vista,
a third-party program is required to convert an ISO file into installable
media—and DVD burning software often includes this capability.
Important
If you decide that you
want to install Windows 8.1 Preview using the ISO, you
won't be able to uninstall it. If you decide to go back to your previous
operating system, you'll need to reinstall it using the recovery or
installation media that came with your PC, which is typically DVD media. If
you're running Windows 8 and you don't have recovery media, you
might be able to create a USB recovery drive. If you're
running Windows 7, Windows Vista, or Windows XP and
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 8.1 Preview, you won’t be able to use the
recovery partition on your PC to go back to your previous version of Windows.
Notes before you download
Windows 8.1 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.
ISO files
Product Key: NTTX3-RV7VB-T7X7F-WQYYY-9Y92F
Important: Windows 8.1 Preview isn't
currently supported on some tablets and PCs with newer 32-bit Atom processors. Get the details
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