I really want to know how can I prevent a program to connect to Internet with Windows 7 firewall?

I have smart security nod32 business edition installed on my computer.
should i do this job with nod or there is a way in Windows Firewall?


3 Answers 3


Basically you do this to prevent a program from connecting to the Internet:

  1. From start menu, search for "Firewall" and select Windows Firewall with Advanced Security

  2. Choose Outbound Rules from the tree at the left.

  3. Choose New Rule... from the menu at the right.

  4. New Outbound Rule Wizard opens. This is really easy now:

    a. Select Program as rule type.

    b. Select the program's EXE file.

    c. Choose Block the connection.

  5. Choose the profile this rule applies to. If in doubt, select all three.

  6. Add the descriptive name (you may want to delete this rule later).

You're done.

  • 2
    Windows Firewall is definitely the easiest way to go.
    – studiohack
    Feb 5, 2012 at 16:07
  • For Windows XP? Apr 20, 2013 at 13:12
  • 3
    For those of you wondering I'd like to note that you don't need to restart the application or anything; The rule takes effect immediately. Aug 25, 2013 at 5:41
  • 1
    Just tried on a setup.exe and still can access the internet. Doesn't seem to work as expected.
    – Totty.js
    Nov 28, 2019 at 15:26
  • What to do on 4b if the app is installed from Microsoft Store?
    – Adil Malik
    Feb 18, 2021 at 18:21

You can prevent the program from accessing the internet through Windows Firewall.

Or if you know the address it tries to connect to simply add a rule in you hosts file and let it connect to your loopback address :-)

 c:\windows\system32\drivers\etc example.com

If you wish to use a 3rd party outbound firewall, this is a good one, they have a Free and a Paid version, Free one works well.


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