If you go the free route, AVG Free (free.avg.com), combined with
Windows Firewall, which comes with Windows, is a good combination.
In addition to the firewall that comes with your PC (for example
Windows Firewall), it will also be great if you could use a good software firewall.
Issues with
Windows Firewall were fixed and known bugs were fixed.
The tool also identifies services with fast restart times that could be attacked to bypass address space layout randomisation (ASLR), as well as changes to the
Windows Firewall rules or Internet Explorer security policies.
It provides the basics of protecting a system from viruses and spyware, from setting up
Windows Firewall and security options to restoring a system after problems.
"Taking Steps Toward Bot Preparedness," a report by Peyton Engel, technical architect with CDW-G, outlines key steps for districts to take to prevent an attack: install a
Windows firewall, disable auto run, break password trusts, consider network compartmentalization, provide the least amount of privilege allowable to users, filter data leaving the network use a proxy server, and monitor DNS queries.