A lot of antimalware programs will tell you to uninstall your other existing antimalware programs. Maybe uninstalling and reinstalling the other antimalware program after you install Kaspersky Security Cloud will work. I don’t think it’s ever a good idea to run two antimalware programs at the same time, both utilizing real time protection. You might be able to make the other program a strictly on demand antimalware scanner. That is what I have done with both Adaware Antivirus (this program automatically installs so it won’t conflict with an already existing antimalware program) and Malwarebytes Free. My primary antimalware program is BitDefender Total Security.