Antivirus solutions are now common component of computer systems. However, security issues pertaining to the antivirus software itself have not captured enough attentions of antivirus vendors and computer users. This paper discusses what an antivirus is? When was created? And why is important for our systems and devices. It explain the tools and techniques, security maintain, and the reason why antiviruses are necessary to secure our systems. Our project aims at making the task of securing files easy from virus attacks. It blocks all viruses form existing system. This is the best way for securing our  computers by purchasing external antiviruses from market. In our project we analyzed the antivirus features and their work. There is analyzed SWOT and process of securing the system. In this project is also made a survey that express people opinions and knowledge. And finally are some recommendations to have our computer and devices more secure.

ASP.NET Core is a new open-source and cross-platform framework for building modern cloud-based Internet-connected applications, such as web apps, IoT apps and mobile backends. It was architected to provide an optimized development framework for apps that are deployed to the cloud or run on-premises.