It is likely that your antivirus is not working correctly due to one or more of the following reasons:
1. Outdated Software: It is possible that your antivirus software has become outdated. Many antivirus programs require regular updates and patches to stay effective and secure. If your antivirus software is not up-to-date, it may not be able to detect the latest threats and viruses.
2. Incorrect Settings: A common reason for antivirus not working correctly is incorrect settings. Some antivirus software comes with a few preset settings that are not suitable for all situations. It is important to configure your antivirus settings properly to ensure maximum protection.
3. Incompatible Hardware: Your antivirus might not be functioning correctly if you have an incompatible hardware. Some antivirus programs are designed to work only with specific types of hardware. If the hardware you are using is not compatible with the antivirus software, it may not be able to perform its duties efficiently.
4. Conflict With Other Software: If you are running multiple software programs on your computer, they may be in conflict with each other. This is particularly true if you are running multiple antivirus programs at the same time. The conflict may prevent the antivirus from working properly, as it cannot perform its duties when there are competing software programs.
5. Malware Infection: Sometimes, even if your antivirus is up-to-date, it may still not be able to detect certain malware infections. If you suspect that your computer might be infected with malware, it is important to scan it with a trusted malware removal tool as well as an antivirus program.
6. Corrupted Files: In some cases, the antivirus may be unable to perform its duties properly if certain files necessary for its functioning have been corrupted. This is usually caused by the installation of malicious software, viruses, or other malicious programs.
7. Poor Performance: If your antivirus is not performing as well as it should, there may be something wrong with your computer system. This could include problems with the hardware, conflicting software, restrictions imposed by your network administrator, etc.
8. Excessive System Resources: If your system resources are being consumed heavily by your antivirus, it may affect its performance. Make sure to check the resource usage of your antivirus software regularly and turn off unnecessary processes and services so that more resources are available for the antivirus to function properly.
If none of the above reasons are applicable to your situation, it is best to consult with a technical support specialist who can help you diagnose and fix the issue.