Protect my device on the network (Windows/MacOS) The firewall allows you to filter all data and can detect and block traffic. To know the status of your firewall or to activate it, please look at the videos below according to your computer model. Windows MacOS Activate the Windows firewall To disable it, proceed in the same way but check "Disable Windows Defender firewall (not recommended)" Activate the MacOS firewall To disable it, proceed in the same way but check "Disable firewall".