Installing Windows from USB is a complex job. You don’t requirement to achieve any such tweaking today, meanwhile there are hundreds of 3rd party instruments that can do the occupation for you. Which improved instrument to use than the one from Microsoft themselves? Yes, you are able to use the popular Windows 7 USB/DVD Tool from Microsoft to generate a bootable DVD or USB device of Windows 8.
Grab Windows 7 USB/DVD Tool (link given at the bottom of the post) and install it. In the first step, select the Windows 8 ISO file that you downloaded and click “Next”.
In the second stage, click USB device.
In the third step, select the USB drive which you want to convert into bootable Windows 8 drive and click Begin copying. The USB device must be larger than 4GB.
It will start copying the files and after some time your USB will be ready.
At this time restart your PC and boot from USB drive to begin installation of Windows 8. If you are anxious about Windows 8 system necessity, then you will be happy to hear that on the word of Microsoft, the system necessity for Windows 8 will be equivalent or less than that of Windows.
Via: iClarified
microsoft always rocks.