Install windows using built-in Administrator

Solution 1:

You can boot into System Audit Mode.

System Audit Mode is a bit of a special mode - it's used by OEMs (original equipment manufacturers) when they're trying to load software onto their computers before they capture an image of them. It's used, for example, to go in after a system has been sysprepped (that is to say, generalized with the system-unique info removed) and modify the image without using tools such as DISM. This mode will automatically reboot the system and log you in using the local admin account, as well as launch a program called sysprep (though you can just close this).

You can boot into System Audit Mode by using Ctrl + Shift + F3 key combination at the OOBE/system initial set-up screen.

Let me know if this works for you! Note that the system will reset back to OOBE on every boot, but you should just be able to go back into System Audit Mode. Note also that this isn't really meant for general use, but to my knowledge, there's not any significant limitations (i.e. your profile gets wiped on every reboot) that would discourage such use. If I'm wrong, though, someone can correct me.