A computer virus is a type of malicious software that can replicate itself and spread from one computer to another. It is designed to disrupt normal computer operations, steal information, or cause other harmful effects.
A computer virus can infect a computer through various means, such as downloading infected files or attachments, clicking on malicious links, or through vulnerabilities in the operating system. It can also be spread through infected external devices, such as USB drives.
The common symptoms of a computer virus include slow performance, frequent crashes, pop-up ads, changes in browser settings, and unusual error messages. It may also cause files to be deleted, modified, or encrypted without the user's knowledge.
To protect your computer from viruses, you should install a reputable antivirus software and keep it updated. It is also important to regularly back up your files and avoid downloading files from unknown or suspicious sources. Additionally, be cautious when clicking on links or opening attachments from unfamiliar senders.
The best way to remove a computer virus is by using a trusted antivirus software. You can also try running a full system scan and removing any suspicious files or programs. If the virus is particularly stubborn, you may need to seek professional help or reinstall your operating system.