Block a Program With Windows Firewall

Windows Firewall is free and comes with Windows. If you want to block a program or a hacker, read this WikiHow to learn how.

10 Second Summary

1. Open Windows Firewall. More ↓
2. Click “Allow an app or feature through Windows Firewall”. ↓
3. Select “Change settings”. ↓
4. Uncheck the box of the program you want to block. ↓
5. Click "OK" to save your Firewall settings. ↓

Steps

Accessing Windows Firewall

  1. Open the Firewall in Windows 8. While on the Start screen, type firewall and select Windows Firewall. You can also click Settings and select Windows Firewall.[1]
  2. Open the Firewall in Windows 7/Vista/XP. Click the Start menu and select Run. In the Run box, enter firewall.cpl and then click OK. You can also access Windows Firewall from the Control Panel.[2]

Blocking a Program with the Firewall

  1. Click the “Allow an app or feature through Windows Firewall” link. It may be called “Allow a program through Windows Firewall”. This will open a list of programs with check boxes next to them.
  2. Click the “Change settings” button. In order to be allowed to adjust the settings, you may need to click the “Change settings” button. If a password is required, enter it now.
  3. Uncheck the box of the program you want to block. When the box is unchecked, the firewall will block it from connecting to the internet.
    • If you’d like the program blocked when connected to a Public network but unblocked on a Private network, or vice versa, check and uncheck the appropriate boxes to the right of the program listing.
    • Checking boxes will allow the program to access the internet. Only allow programs that you trust.
  4. Save your settings. Once you’ve finished making changes, click the OK button to save your Firewall settings.



Tips

  • If you cannot find your desired program or feature in the list provided, you can click on the "Add Another Program" button to add a program/feature from the list of installed programs on your system.

Warnings

  • If you not sure whether a program is safe or unsafe, it is best to not allow it through the firewall, otherwise your system will be more prone to virus attacks and malicious software.

Related Articles

Sources and Citations

  1. ↑ http://windows.microsoft.com/en-us/windows-8/windows-firewall-from-start-to-finish
  2. ↑ http://support.microsoft.com/kb/283673
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