Hi @wangchao5128 ,
For setting up an i.MX 6 for Windows 10 IoT please refer to the following documentation from Microsoft: Setting up an NXP device - Windows IoT | Microsoft Learn.
You should see a detailed step-by-step tutorial on setting up your board and brief instructions on setting up a network connection (wired or wireless) once you have Windows 10 IoT flashed to your device.
Let me know if this was of any help.
Best regards,
Hector.