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Many users have recently reported a malfunction of their firewalls, either Windows incorporated or a third party. While you start your Antivirus for scanning and fixing purposes, it displays with an error code 0x80070424. This error indicates the loss of 'Base Filtering Engine (BFE) Service'. This service is essential for the functioning of most of the firewalls. In its absence, the AVs are not able to perform filtering processes to identify and eliminate the threats.

Windows Filtering Platform (WFP) is a set of system services that enable developing firewall and other connection monitoring and packet processing software. Base Filtering Engine (BFE) is one of these services facilitating WFP.