All About Microsoft posted Windows 10 free upgrade is still available using Windows 7 and 8 product keys
A quote from the article:
In spite of the official end of the free Windows 10 update offer on July 29, it seems any valid Windows 7/8.x retail product key still installs Windows 10 for now.Windows 10 free upgrade is still available using Windows 7 and 8 product keys @ All About Microsoft
