Information about GreatDefender.exe
GREATDEFENDER.EXE is a Trojan.Agent/Gen-NFile[Chronic] which it is configure to run automatically when Windows loads. At the same time it also adds products to the system registry, writes to another Process's Virtual memory and at the same time creates or uses a background service to access the Internet using HTTP protocols.
How to remove GreatDefender.exe
If you want to remove GreatDefender.exe from your system then press Ctrl + Alt + Del button then and go to process tab and delete GreatDefender.exe process after that click on start go to run option and type regedit and press enter now registry window would get open from here browse to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run GreatDefender.exe and delete the registry and fianlly reboot your system for changes to get effected.