Avast WEBforum

Consumer Products => Avast Mac Security => Topic started by: REDACTED on September 19, 2014, 08:24:57 AM

Title: avast! for OS X does not install: "Incompatible Software found"
Post by: REDACTED on September 19, 2014, 08:24:57 AM

I would like to give avast! for OS X a try. My Kaspersky is removed with the tool from the Kaspersky website. After that, I could not find any trace of Kaspersky on my system (Library, Daemons, etc). But I still get the enclosed error.

Where does avast! searches for traces for incompatible softwares?

Thank you for your support.
Andy Brunner

Title: Re: avast! for OS X does not install: "Incompatible Software found"
Post by: krahulik on September 19, 2014, 10:32:52 AM

Hello,
  avast! installer checks, if there are loaded kernel extensions of other antiviruses. In case of Kaspersky:
com.kaspersky.kext.klif
com.kaspersky.nke
com.kaspersky.kext.kimul.44
com.kaspersky.kext.mark.1.0.3

If so, there is reported an error and the installation is terminated. Kernel extensions can be listed in a terminal with a command kextstat.

Title: Re: avast! for OS X does not install: "Incompatible Software found"
Post by: REDACTED on September 21, 2014, 05:33:47 PM

Thank you very much for your answer.

This was exactly what I needed. The official uninstall application from Kaspersky did not remove the kernel extensions

/Library/Extensions/klif.kext
/Library/Extensions/klnke.kext

Now the installation of avast! was successful.

Again, thanks a lot!

Andy Brunner

Title: Re: avast! for OS X does not install: "Incompatible Software found"
Post by: REDACTED on April 26, 2016, 12:51:44 AM

Hi !

I found these kext file with the free KextViewer from Objective-See.

Sincerely,