Wireguard Peer Config on Windows

You come from here and have a .conf file ready.

From here, choose and install the Windows Installer.

"Import Tunnel(s) from File..."

"Activate"

At this point, it should show "Status: Active"

You can try pinging to/from a connected peer.

If that does not work you can also try to set up a barebones http server and hit it from the connected peer (or vice versa).

An example barebones server in python:

import socket

SERVER_HOST = "0.0.0.0"
SERVER_PORT = 8000

server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
server_socket.bind((SERVER_HOST, SERVER_PORT))
server_socket.listen(1)

while True:
    client_connection, client_address = server_socket.accept()
    request = client_connection.recv(1024).decode()
    response = 'HTTP/1.0 200 OK\n\nIt works!'
    client_connection.sendall(response.encode())
    client_connection.close()

Run the server in one peer (python3 server.py - assuming you saved the above example in a file named server.py) and reach it with a client / browser from the other peer:

$ curl --location 'http://172.27.0.4:8000/'
It works!

Wireguard Gateway (WGW) Guide outlines many use cases that may be valuable to you.