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Table of Contents
1. Open Windows Defender Firewall with Advanced Security
2. Create a New Outbound Rule
3. Set Up the Rule for the Program
Step 1: Rule Type
Step 2: Program Path
Step 3: Action
Step 4: Profile
Step 5: Name and Description
4. (Optional) Verify or Modify the Rule
Notes and Tips
Home System Tutorial Windows Series How to block a program from accessing the internet with Windows Firewall

How to block a program from accessing the internet with Windows Firewall

Jul 31, 2025 am 08:08 AM
network access

Open Windows Defender Firewall with Advanced Security via Start menu and approve UAC prompt. 2. Click Outbound Rules, then New Rule to start the wizard. 3. Select Program rule type, browse to the program’s .exe file, choose Block the connection, apply to all profiles, and name the rule. 4. Finish and optionally edit or disable the rule later to restore access. This method blocks all internet traffic for the specified program using built-in firewall settings, requires admin rights, and does not prevent the program from running locally.

How to block a program from accessing the internet with Windows Firewall

Blocking a program from accessing the internet using Windows Firewall is a straightforward process. You do this by creating an outbound rule that denies the program’s connection. Here’s how to do it step by step.

How to block a program from accessing the internet with Windows Firewall

1. Open Windows Defender Firewall with Advanced Security

  • Press Windows S, type Windows Defender Firewall, and click on Windows Defender Firewall.
  • In the left pane, click on Advanced settings.
  • This opens the Windows Defender Firewall with Advanced Security window.

If prompted by User Account Control (UAC), click Yes to continue.


2. Create a New Outbound Rule

Since you want to block a program from reaching the internet, you need to create an outbound rule:

How to block a program from accessing the internet with Windows Firewall
  • In the left pane, click Outbound Rules.
  • In the right pane, click New Rule… This starts the New Outbound Rule Wizard.

3. Set Up the Rule for the Program

Follow the wizard with these settings:

Step 1: Rule Type

  • Select Program → Click Next

Step 2: Program Path

  • Choose This program path:
  • Click Browse and locate the .exe file of the program you want to block (e.g., C:\Program Files\SomeApp\app.exe)
  • Click Next

Tip: If you're not sure where the program is installed, right-click its shortcut → Properties → look at the "Target" field.

How to block a program from accessing the internet with Windows Firewall

Step 3: Action

  • Select Block the connection → Click Next

Step 4: Profile

  • Leave all three boxes checked (Domain, Private, Public) unless you want the rule to apply only in specific network environments.
  • Click Next

Step 5: Name and Description

  • Give the rule a clear name (e.g., Block Chrome Internet Access)
  • Optionally add a description like Prevents Chrome from connecting to the internet
  • Click Finish

4. (Optional) Verify or Modify the Rule

  • After creation, you’ll see your rule listed under Outbound Rules.
  • You can double-click it to edit, disable, or check its status.
  • To re-enable internet access later, just disable or delete the rule.

Notes and Tips

  • This method blocks both TCP and UDP traffic for the program.
  • Some programs may have multiple .exe files (e.g., helper tools or updaters). You may need to block them separately.
  • Administrator privileges are required to create firewall rules.
  • Antivirus or third-party firewalls might interfere—ensure Windows Firewall is active.

Blocking a program this way doesn’t stop it from running—it just cuts its internet access. Useful for stopping bloatware, telemetry, or apps that phone home.

Basically, just set up an outbound block rule for the .exe, and you're done.

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