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I'm sure you will get better answer soon, until then here is a link which talks about how to disable UDP 137 138 and TCP 139, apparently you have to disable netBT ( it's under the heading Client /Server port usage) I would suggest you read all the article through.



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I uninstalled "File and printing sharing" and "Client for Microsoft Network" from the Network Connections in Control Panel.

Both were disabled, but now that I uninstalled them, these ports disappeared. :)


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  • Moderators

If you're using a software-based firewall most that I know of an have used will automatically protect those ports from external/incoming exploitation, even the wimpy Windows Firewall will protect them.

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