Before you can even install drivers, you must replace the stock Dell Chromebook firmware with a custom UEFI firmware (typically from MrChromebox). Once Windows 10 is installed, several key components will not work out of the box:
Essential Dell Chromebook 11 Windows 10 Drivers (CoolStar Method)
Essential for navigating the system. Wi-Fi/Bluetooth Drivers: Often Qualcomm Atheros drivers.