Few days ago, I installed a free application. After finished installing, I find ByteFence Anti-Malware installs appears on my desktop. What's wrong? I didn't installed this program. It scans my computer all the time and shows me my PC has threats. I should remove these threats quickly. I don't need this annoying program. I try to uninstall it via Control Panel. But it still appears after deleting. I follow the guide in this post that I find on the Internet to step by step uninstall ByteFence Anti-Malware. But to my disappoint, it comes back again. How to completely remove the unwanted program? I search for many ways that suggest me to reboot my PC in Safe Mode. I tried but still failed. Any help?