How to Clean and Remove Trojan.Win32.Obfuscated.gx, Trojan.Win32.agent.akk, Trojan.Zlob and Etc.

The system constantly prompts a "Critical System Error!" pop up message saying "Your browser was infected by Trojan.Win32.Obfuscated.gx. You need to clean your system immediately, in other case it can be crashed soon! Click OK to download [...]