If you’re one of the many who own a PC running on Microsoft’s most well-known operating system, you may be wondering if you require third-party antivirus software. After all, Microsoft Windows 11 boasts hardware security features such as TPM 2.0 and Secure Boot that prevent malware from infecting your system when it’s starting up. These security tools are designed to ensure only authentic drivers and OS files are installed. They also ensure that malware can’t alter your system’s files or memory.

Microsoft’s Windows Defender doesn’t protect your device from all cyber threats. Be aware that even the most secure systems can be contaminated with malware, viruses and other ransomware. These threats can compromise sensitive data and slow down your system and even erase it completely.

As a result, it’s always a good idea to have a robust antivirus program protecting your Windows 11 machine. Its primary function is to fight against spiteful virus-containing sites and ads, blocking their immediate access to your computer, so they can’t spread to others or contaminate your files.

Some experts recommend the use of Microsoft’s built-in security functions together with a third-party antivirus application to increase your security online. However, it’s important not to overload yourself with layers of protection as they may interfere with each other and impede their effectiveness. Using multiple antivirus programs can also be expensive and consume your computer’s resources which could result in slower performance.