Windows 10 does not have a built-in TFTP server (only a client), so you have two main options:
For most Windows 10 users, the most efficient method is using a lightweight, reputable third-party application to manage file transfers for network hardware like routers and switches. Top TFTP Server Solutions for Windows 10 how to create tftp server in windows 10
Due to the inherent insecurity of the TFTP protocol, the following precautions are mandatory: Windows 10 does not have a built-in TFTP