Windows 10 uses port 80, disable its own "web-server".
Skype also uses por 80, disable it on its configuration options.
IIS/10.0 is using port 80
To solve that:
french name is: "Service de publication World Wide Web"
- find service "W3SVC"
- disable it, or set it to "manual"
english name is: "World Wide Web Publishing Services" I think
german name is: "WWW-Publishingdienst"
Polish name is: "Usługa publikowania w sieci WWW"
Russian name is "Служба веб-публикаций"
Italian name is "Servizio Pubblicazione sul Web"