Learn how to turn the Windows Firewall on or off using the Windows Security app.

What is a Firewall? Data flows into and out of devices through what we call ports. A firewall is what controls what is - and more importantly isn't - allowed to pass through those ports. You …

Meer informatie over het in- of uitschakelen van Windows Firewall met behulp van de Windows-beveiliging-app.

Click Start, and then type Windows Firewall in the Search programs and files box (Windows 7) or in the Start search box (Windows Vista). In the navigation pane (left pane) of Control Panel, …

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You receive a warning in the notification area of the task bar telling you that the Windows Firewall is turned off. The warning is displayed as a Windows security alert in Windows XP and in …

Learn about the risks of allowing apps through Windows Firewall, and how to add or remove apps from the list of allowed apps.

Windows Firewall settings are greyed out Symptoms When you try to change your Windows Firewall settings, the options are greyed out and you can't make any changes. To fix this, …

Caution: When you remove your currently installed Internet security programs, your PC is in an unprotected state. If you haven't installed another antimalware program make sure that …

Get security info and tips about threat prevention, detection, and troubleshooting. Including tech support scams, phishing, and malware.