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- Go to the Control Panel (Start > Control Panel), click on Windows Firewall.
- If the Windows Firewall state is set to On (shown in the screenshot below), then you are
already good to go and you can close the window.
- If the Windows Firewall state is set to Off, then click on Turn Windows Firewall
on or off from the left menu pane. - Check each button next to Turn on Windows Firewall. By default, only Notify me when Windows
Firewall blocks a new program should be checked. In any case, make sure that option is the only
one checked. Once you have turned Windows Firewall on, you may close the window.
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