The following review written by one of the Software Informer contributors applies to version 11.0
Guardian Antivirus provides complete protection against viruses, online threats and spam to keep your important data and your operating system safe. The program comes with a very user-friendly interface and some extra handy tools, to help you keep your PC running like new. The one unique feature of the program is its pre-install virus scanner, which can check your PC and hard drives for viruses even before installing the antivirus tool. Besides, its online protection tools will warn you before opening any malicious or harmful site while you are browsing the web or using any search engine. Its built-in e-mail scanner protects your PC from viruses and Trojan horses that may enter your system along with e-mail attachments. Finally, its advanced DNA technology can search for viruses in the root directories of your PC. Overall, the program protects your computer from every possible gateway viruses can use.
Apart from these common features, Guardian Antivirus can offer you much more. The autorun protector saves your PC from viruses coming from USB pen drives and autorun CDs. The tracks eraser that comes with it can wipe your entire web history, together with all your cookies, passwords and Windows recent files history, to provide you with complete privacy for your work, and to prevent key loggers and hackers from stealing your passwords and credit card details. The program also has a process manager to help you identify easily any suspicious programs running on your PC. The detailed reports available help you find out which file was scanned for viruses and what actions were taken by the program against infections.
Shortly, Guardian Antivirus is a full-featured protection tool against viruses with some handy extra tools that will help you protect your data from unwanted hands. However, note that the program may ask you to remove any existing antivirus program from your PC before installation.