Here is what i did and worked for me on windows 10:
1) Hit windows + r and type cmd . In the command prompt type ipconfig
2) find your ipv4 address and rename your website url to that ip eg: http://192.168.0.2/example.
3) Now make sure your firewall has access to Apache HTTP Server. Search windows for "Allow an app through windows firewall" click on it then on the top right click change settings and make sure the Apache HTTP Server has one tick on the left and one on the private or public. Hope it helps
Now you can access the website from other PCs in the lan