So depending on the device that you have you may need to remove the Write Protect Screw. From there you need to enable developer mode on your device by pressing the “esc”, “refresh” and “power” keys. From there you can follow the onscreen prompts to enable developer mode.
After developer mode is enabled you’ll need to use CROSH commands to modify your devices BIOS settings.
Their’s actually a very good guide that you can find [link|https://www.howtogeek.com/278953/how-to-install-windows-on-a-chromebook/|here], but I recommend looking up the specific steps for doing such for your specific Chrome Device.