PC World reports that Amazon has confirmed that the sales of Windows 7 Family Pack will end by December 31

The Family Pack gives consumers three upgrade licenses from Windows XP or Vista to Windows 7 Home Premium. When it started selling the $150 package in early October, Microsoft said it would offer the deal for a limited time, but did not set an end date.

On Friday, Amazon's page for the Family Pack told customers that the product would be "available to purchase until December 31, or while supplies last.

  Windows 7 Family Pack Sales to Cease