Using more than one anti-virus program is not advisable
due to conflicts that can arise when they are running in real-time mode simultaneously
. Anti-virus software components insert themselves into the operating systems core and using more than one can cause instability, crash your computer, slow performance and waste system resources
. As a result, dual installation
is not always possible because most of the newer anti-virus programs will detect the presence of others and may insist they be removed prior to download and installation of another.
The correct way to remove any program is to use Add/Remove Programs
from the Control Panel. If that does not work properly, then use the Norton Removal Tool (SymNRT) (uninstalls ALL Norton 2008/2007/2006/2005/2004/2003 products from your computer)