If you made a password reset disk with USB,what should you do:
Plug in the USB drive and boot to BIOS Setting on the computer (The locked computer). if the everything go well,the BIOS will recognizes the USB device.Reboot it, and this time see if you can select the USB device as a boot device.
The computer can be booted with it.
If it still doesn't work for you,try it:https://www.uubyte.com/ to get a new Windows bootable disk.