APPHELPER.EXE Virus is very harmful and dangerous Trojan virus which silently intrude your PC without your knowing. It will make your PC completely useless means if your PC is infected from this malicious APPHELPER.EXE virus then you are unable to perform  single task on your system. it will also able to steal your sensitive and private data without your any concern. if you want to remove this notorious Trojan malware completely from your PC then read this guide :