The filtnt.sys file is the process called Virtual Firewall driver used by the application Agnitum Outpost Firewall Pro developed by Agnitum. This process file is a driver that is located on C:\Program Files subfolder. Known sizes for this file include 125,216 bytes, 90,368 bytes with 20% occurrence and 6 other variants. You can access this driver under Services on Windows Control Panel. The filtnt.sys file can control other programs. The Agnitum Outpost Firewall Pro provides protection for your computer from malware, hackers and Internet attacks. It provides firewall for your outbound and inbound system and applications that safeguards against threats from the Internet, local networks and unauthorized access to your computer. It provides a program activity tracker for you to review modifications in the system on real time. The filtnt.sys file has no digital signature. The process automatically starts on drivers installed.

Most non-system processes that are running can be stopped because they are not involved in running your operating system. filtnt.sys. is used by Agnitum Outpost Firewall Pro, If you shut down filtnt.sys, it will likely start again at a later time either after you restart your computer or after an application start. To stop filtnt.sys, permanently you need to uninstall the application that runs this process which in this case is Agnitum Outpost Firewall Pro, from your system.

After uninstalling applications it is a good idea to scan you Windows registry for any left over traces of applications. Registry Reviver by ReviverSoft is a great tool for doing this.

The ReviverSoft experts have not yet reviewed filtnt.sys

A process usually a part of an installed application such as Agnitum Outpost Firewall Pro, or your operating system that is responsible for running in functions of that application. Some application require that they have processes running all the time so they can do things such as check for updates or notify you when you get an instant message. Some poorly written applications have many processes that run that may not be required and take up valuable processing power within your computer.

We have not received any complaint about this process having higher than normal impact on PC performance. If you have had bad experiences with it please let us know in a comment below and we will investigate it further.

The first thing you should do if filtnt.sys. is causing errors on your computer is to run a Windows registry scan with Registry Reviver If you are still seeing errors after this you should uninstall the program that filtnt.sys, belongs to, in this case Agnitum Outpost Firewall Pro