If you’re serious about your computer and don’t want it to be attacked by malware, antivirus protection is a must. Antivirus software checks incoming emails, programs, and files for viruses, and removes or quarantines any it detects. The best antivirus software works with all operating systems and will use a minimal amount of resources to ensure it does not slow down or crash your PC. The majority of antivirus software must be updated regularly to cope with the most recent ‘bugs’.
There are various kinds of malware that antivirus programs defend against. There are viruses, trojans, malware (which look like legitimate programs but can steal information or damage another device) and spyware that analyzes what you type to reveal your password and account details or bombard you with annoying advertisements and notifications. Many antivirus programs include detection of http://avastantivirusinfo.com/how-to-keep-your-device-protected-from-mobile-malware rootkits that can detect malware lurking in your system, and heuristic detection that searches for patterns and trends in the way programs or files behave in order to catch what signature-based virus scanners may miss.
A reputable antivirus program will protect your PCs and laptops against a variety of threats. It should also work across tablets, desktops and smartphones. It should be lightweight and easy-to-configure and use and shouldn’t depend on “real time” scans that may slow down your system. The most effective antivirus software is constantly changing to stay ahead of the curve. A great test is how frequently it updates its virus definitions and you should strive for weekly or daily updates.