Disable Bluetooth keyboard

I have a Mac desktop computer with High Sierra just installed. At sign-in, the wired keyboard is not typing/entering any letters in the password field. Then the Bluetooth keyboard message pops up and I can’t do anything else. Except for a restart. There is no menu bar, so I can’t go in system preferences to change Bluetooth settings.

I’ve tried all three USB ports and I get the same Bluetooth keyboard Message. The mouse still works in the USB. The wired keyboard worked just fine until now.