a key for emsi please i really like this AV
Emsi
, KIS is a heavier suite, for example the other day a was making a test on my real computer, the test was to infect the system with a malware, later when i tried to clean up the mess, it was a headache, using to many CPU, explorer process restart from nowhere... at the end the system ended into an endless boot loop, well kaspersky just do that consume to much resources and when disinfecting or rolling back most of the time the repair is worst than the virus itself. and also kis is kind of buggy to many problems and compatibility issues. talking about technical support, let me tell you that at least for me, i will say that is bad, takes ages to answer you and when they do they give you forums answers.
Emsi in the other hand is light and in the same test is performed very well, as other said, make a convo in my case is emsi+private firewall