Here you are a complete installation guide that help you installing Comodo firewall:
Comodo installation:
- Manually disable the Windows Firewall
Select Start > Control Panel > Windows Firewall
Check the Off option to disable the Windows Firewall - Uninstall comodo old versions if you had any
- Download comodo latest version from here.
- Start the installation process using the downloaded .exe file.
- Click run if the Security Warning dialog box appeared.
- In the previous dialog box click ok.
- Please read the End User License Agreement, and then click I accept to activate the Free Registration screen.
- Click Next to activate the Extracting the Packages screen.
- Click Next to accept the default path and activate the Firewall security level selection screen, and then check the Firewall Only option as follows:
- Click next to activate the COMODO Secure DNS Configuration screen, with the I would like to use COMODO Secure DNS Servers option enabled.
- Click next to activate the Ready to Install COMODO Firewall screen, and then click install to begin the installation process.
- Finish.
Now restart yor Pc complete the COMODO Firewall installation procedure
and be safe using comodo firewall