Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Terrible Software-Causes more problems than it solves

Based on the rave reviews I saw on Amazon below I bought and installed Kaspersky AV Persona 5.0.1)On the plus side, it found several Trojan horse programs and deleted them.2)On the huge negative side I can no longer run Internet Explorer (blank window opens and then shuts), nor can I use Windows Media player, same thing happens.3)Another big negative -No support! I emailed support telling them of my problems but received no reply.If I can uninstall this thing, I will go back to Norton or McAffe.