App Review Comodo Firewall 2027 - Firewall-Only Installation and Cruelsister Configuration Guide

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Content created by
NoveyBoy

NoveyBoy

New Member
Thread author
May 11, 2025
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Hi everyone,

I recently published a step-by-step video showing how to install Comodo Firewall 2027 as a firewall-only setup and configure it using a Cruelsister-style configuration.
The guide is aimed at users who want to keep Microsoft Defender Antivirus enabled while adding Comodo’s firewall and Auto-Containment as an additional protection layer.

The video covers:
  • Downloading the official Comodo installer
  • Installing only the Firewall component
  • Activating Proactive Security
  • Setting the Firewall to Safe Mode
  • Enabling Auto-Containment
  • Running unknown applications virtually
  • Using the Restricted containment level
  • Disabling EDR
  • Enabling Script Analysis
  • Enabling VirusScope
The final configuration shown in the video is:

Configuration: Proactive Security
Firewall: Safe Mode
Auto-Containment: Enabled
Unknown Applications: Run Virtually
Containment Level: Restricted
EDR: Disabled
Script Analysis: Enabled
VirusScope: Enabled

In older Comodo versions, the related protection component was presented as HIPS. In the 2027 interface, this has changed to EDR, while the configuration shown in the video continues to focus primarily on Auto-Containment.

The video also explains why I consider a default-deny and containment approach valuable. Instead of immediately trusting an unknown application, Comodo can isolate it before it is allowed to affect the real Windows environment.

Video:
Comodo Firewall 2027: Firewall-Only Install & Cruelsister Config

Official Comodo installer:
https://download.comodo.com/cis/download/installs/9090/standalone/cispremium_installer.exe

I created the video as a practical guide for users interested in combining Comodo Firewall with Microsoft Defender. I would also be interested to hear about other members experiences with the EDR changes in Comodo Firewall 2027 compared with the older HIPS-based versions.