installer2.exe is an adware program Adware.BlazeFind. installer2.exe is a Browser Helper Object. installer2.exe downloads and displays advertisements. Related files: %System%\2_0_1browserhelper2.dll %System%\UnstSA2.exe %System%\key2.txt %System%\installer2.exe %System%\Omniscienthook.dll %System%\omniband.dll %System%\wsaupdater.exe Adds the value: "Windows SA" = "[path to the adware program]" to the Windows startup registry keys. More info: http://securityresponse.symantec.com/avc... Removal: Kill installer2.exe process and remove installer2.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.