Windows 8 upgrade promotion is now live. Anyone who purchased a Windows 7 PC or laptop after June 2nd of this year can register from now until January 31st of next year to upgrade to Windows 8 Pro for just $14.99. If you miss the registration period, you'll have to pay full price for upgrading to Windows 8. This deal is currently running in 140 countries. The full list can be found at windowsupgradeoffer.com.
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