What antivirus software do you recommend?

We recommend two antivirus programs which have been proven to detect and stop almost all viruses and exploits:

The Bitdefender Total Security package includes antivirus scanner, two-way firewall, anti-phishing and anti-spam tools. It can also protect your device from ransomware and your wireless network from unauthorized access.

Kaspersky Total Security protects your files and email; it can filter your applications, traffic and content. The package includes spam and phishing protection tools, parental control and banner ad blocker.