REFERENCES/LINKS:
*Free upgrade for Windows 7 SP1 and Windows 8.1 owners.
* http://www.microsoft.com/en-us/windows/windows-10-specifications#sysreqs
**N version do not include Windows Media Player and related technologies.
** https://www.microsoft.com/en-us/download/details.aspx?id=48231
http://www.microsoft.com/en-us/software-download/windows10 (download)