Microsoft has released Windows 8 Developer Preview to public which can be downloaded using this link.
The Developer Preview of Windows 8 will expire on March 11th, 2012 so you can enjoy it for approx. 6 months.
For your convenience, we are listing direct download links for 32-bit and 64-bit editions so that you can immediately start downloading them without navigating through web pages:

Windows 8 Developer Preview with Developer Tools (64-bit or x64)
Download Link (4.8 GB)
Sha 1 hash - 6FE9352FB59F6D0789AF35D1001BD4E4E81E42AF
The ISO file contains following components:
- 64-bit Windows 8 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 Developer Preview (64-bit or x64)
Download Link (3.6 GB)
Sha 1 hash – 79DBF235FD49F5C1C8F8C04E24BDE6E1D04DA1E9
The ISO file comes with Windows 8 Developer Preview (64-bit) and Metro style apps.
Windows 8 Developer Preview (32-bit or x86)
Download Link (2.8 GB)
Sha 1 hash - 4E0698BBABE01ED27582C9FC16AD21C4422913CC
The ISO file comes with Windows 8 Developer Preview (32-bit) and Metro style apps.
Please note that "Windows 8 Developer Preview with Developer Tools" doesn't support upgrade from Windows XP, Vista or 7. You'll need to do a clean install.
If you want to upgrade existing Windows version to Windows 8, you'll need to use either 32-bit or 64-bit edition of Windows 8 Developer Preview without Developer Tools. One more thing to keep in mind! If you upgrade from Windows Vista or 7, Windows 8 will keep your accounts, files and settings but if you upgrade from Windows XP, Windows 8 will only keep your accounts and files but not settings.
This article was posted by VG in following section: Windows 8.
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Ahsan
Plz give me torrent link...
nipunb
@Ahsan
why do you need torrent links???? these are direct download links and are much faster than torrents......
Nunja Business
Awesome sauce! Downloading now (20%) and I will have a virtual machine built today.
Nunja Business
well ... no joy with a VMWare installation from the ISO of the 64-bit version with Dev tools.
When I try to start the VM I get a message that says "Your PC ran into a problem that it couldn't handle and now it needs to restart. I have never had a problem with installing from a mounted ISO file before so this is strange.
Am now downloading the 32-bit version without Dev tools to see if there is any difference.
Nunja Business
OK, Virtual Box looks like it may be the answer. At least I got to begin Windows setup instead of the blue screen that VMWare gives me.
Someone
I installed Windows 8 Developer Preview, but realized I wanted the version with developer tools, so can I install the version with the tools on top of the regular 64-bit version?
VG
^^ Not sure but most probably No.
David Mai
Hey VG, can we dual boot this with Windows 7?
D_yukimura12
Vg can i install this dual boot with windows 7?
VG
^^ Yes, You can. Boot using setup DVD or USB drive and then install Windows 8 Developer Preview on another partition.