Apache Server (xampp) doesn't run on Windows 10 (Port 80)

I have installed the Windows 10 Insider Program. Everything works, except Apache. When I try to start it, it says that port 80 is blocked. Is there a way to unblock it or tell Apache to use another port instead?

I was using Windows 7 before. I had trouble with port 80 with skype, but i have disabled it.

Solution

I had the same problem on windows 10, IIS/10.0 was using port 80

To solve that:

find service "W3SVC"
disable it, or set it to "manual"

French name is: "Service de publication World Wide Web"

English name is: "World Wide Web Publishing Service"

german name is: "WWW-Publishingdienst" – thanks @fiffy

Polish name is: "Usługa publikowania w sieci WWW" - thanks @KrzysDan

Russian name is "Служба веб-публикаций" – thanks @Kreozot

Italian name is "Servizio Pubblicazione sul Web" – thanks @Claudio-Venturini

Español name is "Servicio de publicación World Wide Web" - thanks @Daniel-Santarriaga

Portuguese (Brazil) name is "Serviço de publicação da World Wide Web" - thanks @thiago-born

Alternatives :

Another solution is to shutodwn the service via an admin console with command sc stop W3SVC
see community wiki from Tobias Hochgürtel Apache Server (xampp) doesn't run on Windows 10 (Port 80)

Edit 07 oct 2015: For more details, see Matthew Stumphy's answer Apache Server (xampp) doesn't run on Windows 10 (Port 80)