Download Windows 8 Developer Preview 32-bit and 64-bit now!

Windows 8 Developer Preview

Download Windows 8 Developer Preview 32-bit (x86) and 64-bit (x64).

The Windows developer center web page is now live and the upcoming version of Windows is available in the following ISO images customized for geeks and developers:

Windows 8 Developer Preview English, 64-bit (x64)

  • Download Windows 8 64-bit (x64) — 3.6 GB 
  • Sha 1 hash – 79DBF235FD49F5C1C8F8C04E24BDE6E1D04DA1E9
  • Includes a disk image file (.iso) to install the Windows Developer Preview and Metro style apps on a 64-bit PC.

Windows 8 Developer Preview English, 32-bit (x32)

  • Download Windows 8 32-bit (x86) — 2.8 GB 
  • Sha 1 hash – 4E0698BBABE01ED27582C9FC16AD21C4422913CC
  • Includes a disk image file (.iso) to install the Windows Developer Preview and Metro style apps on a 32-bit PC.

Windows 8 Developer Preview with developer tools English, 64-bit (x64)

  • Download Windows 8 64-bit (x64) with developer tools — 4.8 GB 
  • Sha 1 hash – 6FE9352FB59F6D0789AF35D1001BD4E4E81E42AF
  • All of the following come on a disk image file (.iso). See below for installation instructions.
    • 64-bit Windows Developer Preview
    • Windows SDK for Metro style apps
    • Microsoft Visual Studio 11 Express for Windows Developer Preview
    • Microsoft Expression Blend 5 Developer Preview
    • 28 Metro style apps including the BUILD Conference app

Windows 8 system requirements

This developer preview will work well in the same hardware specs that runs Windows Vista and Windows 7:

  • 1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor
  • 1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)
  • 16 GB available hard disk space (32-bit) or 20 GB (64-bit)
  • DirectX 9 graphics device with WDDM 1.0 or higher driver
  • Taking advantage of touch input requires a screen that supports multi-touch
Important: You cannot uninstall Windows 8 Developer Preview. To go back to a previous operating system, you are going to have to do a clean install or restore from backup.

Update Oct. 11, 2011