After installing Windows 10 service pack version 1903, my IIS default web site didn’t turn on.
I checked the EventViewer getting the following issue:
The World Wide Web Publishing Service (WWW Service) did not register the URL prefix http://*:80/ for site 1. The necessary network binding may already be in use. The site has been disabled. The data field contains the error number.
I checked the opened ports with “netstat”, however I couldn’t find any app using the 80 port.
I checked the IIS file config “C:\Windows\System32\inetsrv\config\applicationHost.config” and I found the issue. Apparently, IIS added 2 bindings for 80 port and this new patch is unable to deal with it. So, I removed the duplicated code:
<binding protocol="http" bindingInformation="*:80:*" />
After removing that duplicated line it went up again.
Hopping this could help saving time to anyone with this same issue!
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