QyuleInstall.exe is a Trojan.Dloader-ZM. QyuleInstall.exe downloads code from the internet. Related files: %Program Files%\Qyule\QyuleInstall.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill QyuleInstall.exe process and remove QyuleInstall.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.