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Home » How to » How to Block and Unblock Programs in Windows Firewall

How to Block and Unblock Programs in Windows Firewall

By: Waseem Patwegar

Windows Defender Firewall makes it easy to block harmful programs from accessing network resources on your computer. Similarly, you can unblock programs in Windows Firewall, in case you find that a particular program is being unnecessarily blocked.

Block and Unblock Programs in Windows Firewall

Block and Unblock Programs in Windows Firewall

While trying to run a program on your computer you may come across a message that the program that you want to access has been blocked by the Firewall on your computer.

In case the program that you are trying to open is a legitimate program and you want to open it, you will have to unblock the program in Windows Firewall.

Similarly, in case you come across an unknown or potentially harmful program, you can block the program from accessing network resources on your computer using Windows Defender Firewall.

Steps to Block or Unblock Programs in Windows Firewall

Follow the steps below to Block or Unblock Programs in Windows Firewall.

1. Open the Control Panel on your computer.

Open Control Panel in Windows 10

2. On the Control Panel screen, make sure that you are in “Category” View and click on System and Security option.

System and Security option in Windows 10 Control Panel

3. On the System and Security screen, click on Allow an App through Windows Firewall option located under Windows Defender Firewall section.

Allow an App through Windows Firewall Option in Windows 10 Control Panel

4. On the next screen, uncheck the little box next to the program that you want to block in Windows Firewall.

Allow or Disallow Programs In Windows Defender Firewall

Note: Checking the box allows the program to access network resources on your computer.

5. If the program that you want to block or unblock is not listed, click on Allow another app… button.

6. Next, choose the App or Program from the list and click on Add. If the program is not listed, click on the Browse button and select the program from its location on your computer.

Related
  • How to Add and Remove Startup Programs in Windows 10
  • How to Uninstall Programs in Windows 10

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