AVG – Your PC Is Infected With 18 Viruses is a common pop-up message that appears in web browsers, particularly when users visit suspicious or malicious websites. This message is often a form of scareware, designed to trick users into thinking their computer is infected with viruses in order to prompt them to download a fake antivirus program or pay for unnecessary services.
These pop-up messages are often part of online scams or phishing attempts, and should not be taken seriously. It is important for users to ensure their computers are protected with legitimate antivirus software and to be cautious when browsing the internet to avoid falling victim to such tactics. It is recommended to close the browser window displaying the message and run a scan with a trusted antivirus program to ensure the computer is not actually infected with any malicious software.