The application is cross-platform and is available for Windows, Linux, and Mac OS X.
You can also download Windows 8 Release Upgrade Assitant, which includes tools that allow you to create a DVD or USB flash drive from an ISO file (Windows Vista or Windows 7 required).UNetbootin allows you to create bootable Live USB drives for Ubuntu, Fedora, and other Linux distributions without burning a CD. One option is the USB/DVD download tool provided by the Microsoft Store.
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. The easiest way to convert an ISO file to a DVD in Windows 7 is to use Windows Disc Image Burner.
How to install Windows 8 RTM from an ISO image
In order to use this evaluation, the product must be activated online with Microsoft-hosted activation and validation services. It is intended for evaluation purposes only and cannot be used for productive business or personal purposes. The Windows 8 RTM evaluation provides up to a 90-day evaluation of Windows 8. Try Windows 8 today to experience the new capabilities firsthand and start planning for Windows 8 in your organization. Designed to deliver the experiences people love and the enterprise-grade solutions companies need, Windows 8 provides what today's workforce wants, bringing new possibilities in mobile productivity, end-to-end security, virtualization and management advancements, and the business tablets you've been waiting for.