Alex Ruben
How to Block Applications from Internet Access Using Windows Defender Firewall
This tutorial guides you through the steps to block any application from accessing the internet on your Windows 10 or 11 computer using Windows Defender Firewall. By the end of this guide, you will learn how to create a new outbound rule, specify the program path, block the connection, and verify the rule, giving you greater control over your system’s network usage.
Step 1: Open Windows Defender Firewall
Begin by accessing the Windows Defender Firewall settings:
- Press Win + R to open the Run dialog.
- Type
Control Paneland press Enter. - Navigate to
System and Securityand then click onWindows Defender Firewall.
Step 2: Create a New Outbound Rule
To block an application, you must create a new outbound rule:
- Click on
Advanced settingslocated in the left pane. - In the Windows Defender Firewall with Advanced Security window, find
Outbound Rulesin the left pane and click on it. - In the right pane, click on
New Rule....
Step 3: Select Program Path
Now, specify the application you wish to block:
- Select the
Programoption and click Next. - Choose
This program pathand browse to find the executable file for the application (e.g.,C:\Program Files\AppName\App.exe). - Click Next.
Step 4: Block the Connection
Next, you need to configure the connection blocking:
- Select
Block the connectionand click Next. - You will then see options for when to apply the rule – ensure all three options (Domain, Private, Public) are checked, then click Next.
Step 5: Name and Finish the Rule
Finally, you will name your rule:
- Enter a descriptive name for the rule (e.g., “Block MyApp Internet Access”).
- Provide an optional description, then click Finish to apply the rule.
Step 6: Verify the Rule
To ensure that the rule is active:
- Return to the
Outbound Rulessection in the Windows Defender Firewall. - Locate your newly created rule and ensure it is marked as enabled.
Extra Tips & Common Issues
Here are some additional tips to enhance your experience:
- If the application still connects to the internet after following these steps, double-check the rule settings for any errors.
- Consider disabling and re-enabling the rule to troubleshoot connection issues.
- Remember to review your outbound rules regularly to ensure they remain updated with your needs.
In conclusion, this guide has provided you with a simple and effective way to block applications from accessing the internet using Windows Defender Firewall. Should you need to unblock an application in the future, you can simply disable or delete the outbound rule you created in these steps.