The free upgrade duration– apparently– came to an end some time back, however in fact it is still possible to jump from Windows 7 or Windows 8 to Windows 10 for complimentary in 2021. In order to get a totally free upgrade, you need to be running a genuine, activated copy of either Windows 7 or Windows 8.x.
Quick! Upgrade to Windows 10 for free in 2021 – BetaNews
