My memo

Apache install memo

I got this error message.

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make_sock: could not bind to address 0.0.0.0:80
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But "netstat -aon" didn't show that 0.0.0.0.80 occupy other programs.
Whereas Apache server on localhost enable.

I followed same procedure this below.
https://forum.avast.com/index.php?topic=55508.0
    'Avast is bound to (or listening on) port 80 and this is preventing'

I changed listen port from 80 to 8080.
In the result, the error message cleared.