Lots of you would be excited about Windows 8 and would upgrade your current PC as soon as Microsoft release Windows 8. If your visit windowsupgradeoffer.com than you would come to know that those who buy Windows 7 PC between June 2, 2012 and January 31, 2013 can upgrade to Windows 8 Pro for just INR 699 (~$13). But you need to register on the site before February 28, 2013. But what about those who already own PC? Well Microsoft has announced that if your PC is running Windows XP, Windows Vista, or Windows 7 you will qualify to download an upgrade to Windows 8 Pro for just $39.99 (~INR 2200). Windows 7 (any edition) users will be able to retain everything along with their Windows settings, personal files, and apps after upgrade. Windows Vista users will retain Windows settings and personal files where as Windows XP can only retain their personal files. The upgrade can be downloaded from net or backup DVD could cost you $15 extra plus shipping and handling. This upgrade promotion for Windows 8 Pro ends after January 31st, 2013.