Windows 10 to be FREE if you upgrade within the first year.

Current users of Windows 7, 8, 8.1 along with Windows Phone will be eligible for a free upgrade to Windows 10.
A big question remains if Windows 10 will be subscription based much like Adobe did with the Creative Cloud.
“Once a device is upgraded to Windows 10, we’ll be keeping it current for the supported lifetime of the device,” said Terry Myerson, executive vice president of the Operating Systems Group.

Let’s hope this is the case.
A free upgrade to Windows 10 – especially from Windows 8 would be welcomed for many.
Search for “windows 10” and “windows 10 upgrade” in Google for more info!