The answer to this question depends on a number of factors, such as the type of computer you are using and your individual needs. In general, however, it is recommended that Windows users install an additional antivirus program in addition to Windows Defender.
One of the primary reasons for this is that Windows Defender does not offer comprehensive protection from all types of malware. While it does a decent job at scanning for and removing known viruses, it does not proactively guard against zero-day threats or ransomware. It is also limited when it comes to blocking potentially unwanted programs and web browser exploits.
In addition to this, Windows Defender may struggle to detect malicious files if they have been digitally signed by trusted software providers. This can allow malicious software to slip through the cracks and remain undetected, leaving your system vulnerable to attack.
By installing an additional antivirus program, such as Symantec or McAfee, you can add an extra layer of protection to your system. These programs specialize in detecting and eliminating sophisticated malware and can be better equipped to block digital signatures and other advanced threats. In addition, most premium antivirus solutions offer real-time protection, meaning they are constantly monitoring your system for suspicious activity, so any new threats are detected and stopped immediately.
Another reason to install an additional antivirus program is that Windows Defender lacks certain features such as a web shield and real-time email protection. An antivirus program can provide these additional security measures, safeguarding your system from potentially harmful internet activities.
Finally, by installing an extra antivirus program, you will get access to more up-to-date definitions and threat detections. As new threats emerge, these programs are updated with the latest definitions, providing your system with the best level of protection.
Ultimately, the decision to install an additional antivirus program will depend on your individual needs and budget. However, many security experts would advise that Windows users install an extra security measure in order to stay protected from the ever-changing landscape of cyber threats.