And never needed, all available upgrade options (by ISO/USB/DVD) or genuineticket.xml options still work.
Microsoft has closed the channel that win7 free upgrade to win10. If you try to do it will get an error code such as 0x803F7001. Microsoft's official statement is that by the latest by the end of 2017, win7 free upgrade win10 completely over. However, by the month of January 31st, 2018, you could actually do this. Microsoft secretly extended the date that it can be upgraded for free. This is without any official statement. Microsoft does not rule out the implementation of different strategies for different countries, in some countries, can also be upgraded for free.Microsoft did not achieve a predetermined market share, nor did it rule out that it would secretly open a free upgrade channel for some time. Very simple, you can try on a computer that has never been activated win10.
Upgrade from existing activated windows 7.. If you previously activated using daz loader then also try the bios slic 2.1 mod/hack and then upgrade to windows 10 using the windows 10 upgrade tool. It works