Windows 10 never required an activation key.
Windows 10 never required an activation key.
Hello! Your friend installed a fresh copy of Windows 10 using the installation tool from your USB, and it didn’t prompt for an activation key even though he already had Windows 10 on his old drive. We looked into it and saw that it was marked as activated. It’s possible the version he used was retail or that the activation process worked differently. Let me know if you need more details!