Co-existence

My PC came with norton internet security and i installed avast anti-virus. Are the two compactibly pls do err you view

always remove previous used AV before installing a new…
running multiple AV will give you a slow machine, mysterious windows errors and false detections

when uninstalled run the vendors removal tool to clear any leftover files that may conflict
tools here. http://singularlabs.com/uninstallers/security-software/

See http://www.bleepingcomputer.com/forums/t/260844/two-anti-virus/#entry1441638 :slight_smile: