My friend has a Dell Latitude laptop with Win-XP upgraded from Win-ME. The PC has current Norton AV with definitions updated to April 7, 2004. In the NAV Reports folder there are 65 infected items displayed in quarantine status including the following obvious viruses: w32.bugbear.b.dam <=== 1 file w32.klez.h@mm <=== 4 files w32.netsky.b@mm <=== 13 w32.netsky.c@mm <=== 5 w32.netsky.d@mm <=== 8 w32.netsky.p@mm <=== 18 w32.swen.a.@mm <=== 1 The remaining files are bat, pif, scr,exe, zip. The quarantines date back to January 14, 2003. QUESTIONS: Should I leave these in quarantine?...or delete if possible using NAV. Should I use a removal tool to get rid of the viruses, if NAV can't do it. Oddly enough, NAV help does not address the pros and cons of leaving files in quarantine.