Why Kaspersky Antivirus 7 doesn't like Comodo Firewall ?


All is on the title of my post.
I’m trying to install Kaspersky Antivirus 7 but he’s telling me to remove your Comodo Firewall !
Why ? I don’t want to remove you :cry:

On the image, Kaspersky ask me to uninstall Comodo before to proceed installing it.

Greetings PegHorse,

You’ll need to install KAV before installing Comodo.
You’ll loose all your application rules tho.
Else you could try this:
Open start menu, then run regedt32 and navigate to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\COMODO Firewall Pro
Now export the full key then delete it. Afterwards you should be able to install Kaspersky.
After the installation just import the key.


morning ragwing. early this year had same problem but finally got both downloaded. then my internet speed went downhill. have fios 15-2 but ended up with dsl speeds. determined kavwasthe problem child and wentback to avira. no problems since. just my two cents. might try your suggestion in the future. frank.


I’m sorry that you’re having this problem. Unfortunately, it’s not uncommon. KAV (and the free AOL version, AVS) have issues with a number of firewalls. It is my understanding that Kaspersky has published a list of approved firewalls to use with it (surely theirs is at the top…).

The conflicts (whatever the cause) show up in a lot of different ways. Some users experience KAV saying that the firewall needs to be uninstalled. Some install, but then the firewall is rendered inoperative. Some seem to work fine, but all connectivity is lost. And the list goes on.

Not all users have issues with these applications; for the ones that do, it is a pain. As Ragwing said, some have found solutions by changing the installation order, and different things of that nature; sometimes it works, sometimes it doesn’t. Everyone has found that if they uninstall KAV, the problem goes away… :wink: At this point there is no official solution or workaround from either company, afaik.

One user who was experiencing troubles between the two upgraded KAV to 7.125 and the problems went away; however, if you’re on KAV 7 and have these problems, it makes it look like that is only a random solution.

Comodo has stated that they are aware of the problem & the cause, and are working on a solution for v3 of CFP. I do not know if Kaspersky is working on it from their end as well.

Unfortunately, at the moment it looks like the only sure work-around is uninstalling one of the applications. I wish I had a better answer for you, but I don’t… :cry: