Download Windows 8.1 Preview - Direct Download

You can install Windows 8.1 ( Codename Windows Blue) Preview using the ISO files (.iso) that are provided on this page directly from microsoft

You can find additional information—including system requirements, support options, and a list of supported upgrades

Windows 8.1 is built for faster, more mobile PCs. With leading design and a better Windows Store, you can build apps and your business faster with Windows.

Windows 8.1 offers new features under the hood to make it the fastest, most secure, and easiest to manage Microsoft operating system for desktop, laptop, or tablet.

How to install Windows 8.1 Preview from an ISO file

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. skips ads in 5 seconds
Double-tap or double-click the ISO file.
Double-tap or double-click setup.exe and follow the steps.

f 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

Language	Link to download	SHA-1 hash value
English 64-bit (x64)	Download (3.8 GB)	0xD8076E029292FBC933792D215793045031255FF6
English 32-bit (x86)	Download (2.8 GB)	0x447CCD24EB3DC6CFD9A42E62A5F6418B578E3CBF
English (United Kingdom) 64-bit (x64)	Download (3.8 GB)	0xFC32F33D0A0630A5E8478199095565EB525F4943
English (United Kingdom) 32-bit (x86)	Download (2.8 GB)	0xD64FBE9B5DA93FFC8108C9211557D568F651EB2A