My antivirus shield located Trojan in c:/System Volume Information folder. When I tried to go inside of this folder, warning message "acess denied" was shown. I marked "Turn off setup" in system restore option and rerstarted comp due to instruction found on web. I did in in safe mode too, but I wasnt successful. Folder "System Volume Information" is still closed. How can I go to this folder or how can I clean virus from this folder?