Hmm, thank you, thank you so much. Yes, I read a similar method to create a bootable USB with WIM files, but it was a little incomprehensible. On this website that you said me it is clearly explained: https://fossbytes.com/create-bootable-usb-without-software-windows-10-using-command-prompt/ Only one doubt, the process finished at the step when you doing the active partition bootable: "3.Type bootsect /nt60 g: and hit Enter. It will create the boot sector on G: drive (USB Flash drive). 4.Type exit and hit Enter to close the Command Prompt." Or at the step 12 y 13 when you mark the primary partition as active: "12.Next, type active and hit Enter. It will activate the current partition. 13.Now, type format fs=ntfs quickand hit Enter. This command will format your current partition as NTFS file system quickly." And after that, only is necessary to copy the Windows 10 files to the USB? Well, I will try everything anyway. I will tell you if it works. Thank you so much. Regards.