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If you’re serious about your computer and don’t want to be harmed by malware, protection from antivirus is a must. Antivirus software scans your files, programs and incoming emails for viruses, and deletes or quarantines anything it detects. The most effective antivirus software is compatible with all operating systems and consumes minimal resources so it doesn’t slow down your system or cause a crash. The majority of antivirus software must be updated regularly to deal with the latest bugs‘.

Antivirus programs can protect you from a wide range of malware. They include worms, viruses and trojans (which act like safe programs but take your personal information and attack other devices) as well as spyware that monitors what you type on the keyboard to reveal passwords and account details or flood you with annoying advertisements and alerts. A lot of antivirus programs have the ability to detect rootkits that identify malicious code hidden deep within your system. Heuristic detection is also looking for patterns and recurring patterns in the way that programs and files behave in order to detect what signature-based scanners may miss.

A reliable antivirus program should protect your PCs and laptops against a variety of threats. It should also work across tablets, desktops, and smartphones. It should also be light and easy to set up and use, and not rely on a real-time scan, which could slow your system. The best antivirus software is constantly changing to stay ahead the curve. A good indicator is how often it updates its virus definitions and you should aim for every day or at the very least weekly updates.