WZor, the famous leaking group that were highly active back in the old Windows 7 days, has officially leaked a confirmed genuine copy of the RTM build of Windows 8. The leaked ISO comes as a “touched” unbootable ISO, which means that those inclined to use this have to jump through hoops to rebuild the ISO before they can boot to the installer.

The copy that has leaked today is the Windows 8 Enterprise N-Edition 64-bit copy of Windows 8, which doesn’t include Windows Media Player bundled in. Although details are scarce at the moment while the leak still makes its way into people’s hand, all signs point to this featuring the same activation methods used in Windows 7, allowing users to test the product for 30-days without a product key  – we’ve actually just received word that there is no activation grace period for Windows 8, meaning you’ll need a key to get any use out of this leak – though we wouldn’t be surprised if patches and the such make their way out sooner rather than later.

Here’s some clarification regarding the grace period from Windows enthusiast Rafael Rivera:

A key is req. at setup; if you happen to enter an eval key, you will receive activation watermarks and not be able to change wallpaper/etc.

— Rafael Rivera (@WithinRafael) August 2, 2012

Windows 8 will be officially released to consumers on October 26th.

Updated 08/02/12 @ 5:38 PM EST.