Find ports

netstat -aon
 
# Show process, requires admin
nestat -aonb
 
# Filter
netstat -anob | find ":80"

Remove netsh port binding

# left section you will get listen port and address
netsh interface portproxy show all
 
# delete port bindings
netsh interface portproxy delete help
netsh interface portproxy delete v4tov4 listenport=27117 listenaddress=0.0.0.0