Find out what's blocking port 80 / 443 on WindowsArticle Number: 000054236 | Last Modified: 2019/03/19
This is how you find what task that is currently listening on the default HTTP-port 80 or HTTPS-port 443. Open the Command Prompt (cmd.exe) and execute the following:
Step 1 - Find PID of program:
The list could be long. Look for something ending with :443 or :80 in the second column. Get the pid from the right most column (e.g. 37400)
netstat -ano | find "443" or netstat -ano | find "80"
Step 2 - Find the name of the task with the resulting PID:
The output should give you the name of the task that is blocking your port.
tasklist /svc /FI "PID eq 37400"
Step 3 - If the PID turns out to be PID 4 or something else that displays "Can not obtain ownership information" use:
net stop http
This will show you any additional services that are dependent on 80/443
Protip: I often find that Skype is blocking port 80 / 443. You can disable this in the Skype-client's settings.
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