Those running Windows 8 now will be able to get Windows 8.1 for free. But 8.1 will cost everyone else between $119.99 and $199.99 (for Pro)…. Those running Windows 8 now will be able to get Windows 8.1 for free. But 8.1 will cost everyone else between $119.99 and $199.99 (for Pro).

Read more http://www.zdnet.com/microsoft-prices-windows-8-1-starting-at-119-99-7000020794/