What Is a Computer Virus

A computer virus is a type of malware that, when executed, replicates by inserting its code into other computer programs, data files, or the boot sector of the hard drive. When this replication succeeds, the affected areas are then said to be “infected” with a virus.

Viruses are often spread by email attachments, or by files from infected websites. Once a virus has infected a computer, it can spread to other computers on the same network.

Viruses can have a wide range of effects, from causing a small annoyance to causing serious damage to a computer. Some viruses are designed to simply display a message or image on the screen, while others can delete files, reformat hard drives, or even disable a computer.

The term “virus” is also used, more generally, to refer to any type of malware.

How to Prevent Computer Virus- 3 Easy Tips

As the world becomes more and more digital, so do the threats to our computer systems. Viruses, malware, and other malicious software are constantly evolving and becoming more sophisticated. While there is no surefire way to prevent all computer viruses, there are some steps you can take to greatly reduce your risk of infection.

1. Keep Up to Date Operating System

First and foremost, always keep your operating system and all your software up to date. Security patches are released regularly to address vulnerabilities that could be exploited by viruses and other malware. By keeping your system up to date, you’ll ensure that you have the latest protections in place.

2. Use an Antivirus

Next, install and run a reputable antivirus program. Antivirus software uses signatures and heuristics to identify malware and quarantine or delete it. Be sure to keep your antivirus program up to date, as new viruses are created all the time.

3. Follow Online Caution

Finally, use caution when opening email attachments and downloading files from the internet. These are common ways for viruses to find their way onto your system. If you’re not expecting an email attachment, be wary of opening it. And, only download files from trusted websites.

If you follow these simple steps, you can help keep your computer safe from viruses and other malware.