Antivirus Tip: If an antivirus program is using too many resources and not picking up any threats, then uninstall and find new antivirus protection.

Antivirus Tip: The free software packaged with your operating system is often not enough protection. Rather purchase quality anti-virus and malware software.

Antivirus Tip: Check your browser settings to see what plug-ins are installed and verify what you have, or you might install malware that installs more viruses.

Antivirus Tip: NEVER click on e-mail attachments or links provided without verifying if the sender and/or the contents are safe and scanned.

Antivirus Tip: Look for an anti-virus program that is easy to use, but offers the level of protection you need.

Antivirus Tip: No single anti-virus program can provide 100 per cent protection. Using two or three programs to provide a wide security net is preferable.

Antivirus Tip: A computer virus replicates itself by changing the code in other programs to copy itself across a computer system.

Antivirus Tip: There are several different types of viruses and they all behave differently, including how they spread: virus, trojan and worm.

Antivirus Tip: No single anti-virus program can provide 100 per cent protection. Using two or three programs to provide a wide security net is preferable.

Antivirus Tip: Normal viruses may start as annoying pop-ups, but trojans that prevent you from restarting your PC are admin-level and require experts to remove.