If you do not own an ASUS ROG motherboard, attempting to install Kaspersky Anti-Virus 2013 using their setup installer will fail with the error message “Error has Occurred. Application was not installed. Digital signature of installation files is missing”. But there is a way to install and activate the ROG edition using the standard antivirus package for ALL users, not just those who have Asus ROG motherboards. This isn’t done using cracks or keygenerators,but with just following some steps. Here’s the steps how to do it.