Do I need to use Returnil System Safe or Returnil Virtual System with the virtualization always ON?
NO, a common way to use RSS or RVS is to activate Virtual mode (RSS 2011, RVS Pro 2011, and RVS Lite 2011) or System Safe (RVS 2010) temporarily rather than change the default protection mode. You can think of this like the shield space ships use in Science Fiction: When in doubt or about to enter a potentially hostile place, turn ON the virtualization! Something to consider: RSS and RVS are security solutions focused on the concept of TIME-TO-REMOVAL of malware as no Antivirus solution is able to detect 100% of all malware in existence at any given period of time. This means that the risk of encountering unknown malicious content can be significant and the consequences severe. This is why we recommend that you do operate your computer with the RSS/RVS virtualization active at all times, but it is not manditory for the proper functioning of RSS or RVS.