I currently use Symantec Antivirus in our office network of 25 clients machines (Wind XP, Vista and Win 7), two windows 2003 servers and one Windows Storage Server 2003 (64 bit).
I have had problems upgrading to new versions (Endpoint versions) of Symantec antivirus and recently had to rollback such an upgrade through much network disruptions.
I have heard that Trend Micro provides early virus updates. I am looking to dump Symantec and move to either Kaspersky antivirus or Trend Micro. Kindly provide related comments and advise. Thanks.