After a frustrating month of trying unsuccessfully to upgrade to the most recent version of Returnil, I've finally managed to do so, thanks to help from tech support. Today I started Returnil and went to enable System Safe. However, when I clicked on Enable in the system tray, a box popped up that said "It is recommended that you close all open programs before proceeding." I don't recall this from my earlier version. How necessary is this? Do I really have to shut down all open programs? Some? What about security programs like my antivirus (no, I do NOT use VirusGuard, having found it to be much less reliable than my regular antivirus program), my firewall, and an antimalware program? I don't want to cause Returnil to malfunction, but I really don't want to shut down all open programs unless this is absolutely essential. Thanks in advance.