Servers(DELL POWEREDGE 2650) are running windows 20000 server with service pack 4. Just renewed the our AV10.0 Groupware Protection and was told to upgrade to AV10.2. This will be the first time I upgrade AV in this kind of scale (only did the AV upgrade on the computer at home). I was wondering if there is a correct way to upgrade to avoid any down time and risk of been infected? And do I need to remove the client security on each one of the local stations and servers? Any feedback will be appreciated.