You didn't need a modded BIOS for that. Using Daz loader to activate windows 7 before upgrading to 10 would have the exact same result.
You should have left the modded bios. You may still loose activation when your PC talks to the MS servers.
@Serg Please may i have SLIC 2.1 permanent of Motherboard Manufacturer : ASUS Model : Z170I PRO GAMING Bios type : AMI Bios revision : 3020 Bios SLIC : ASUS 2.1 Original bios link: dlcdnet.asus.com/pub/ASUS/mb/LGA1151/Z170I_PRO_GAMING/Z170I-PRO-GAMING-ASUS-3020.zip Thank you!