Returnil System Safe 2011 is a legitimate security program which offers real-time protection. The problem with many such programs is that they sometimes can be difficult to remove if their services and running processes are not disabled or turned off prior to attempting removal because they are in use.
With some programs it's easier to uninstall after booting into safe mode
which is designed to start Windows with minimal drivers and running processes. In safe mode many programs and their related services that normally start when Windows starts will not run. Since that is the case, it also means there are less processes which can interfere with uninstalling a program.[/i]