Sure ... with the preview copy.
For retail Win8, if you bought it pre-installed on a PC, it’s motherboard-bound. If not (like the download copy), it’s emphatically not.
http://www.zdnet.com/how-the-new-windows-8-license-terms-affect-you_p2-7000003028/
I bought it using the upgrade assistant. I bought a new lenvo during the window to get the 15 dollar upgrade. I however installed that on a different PC. it is LOCKED to that pc and according to ms (lack of) support it’s stuck to the old pc.