Anti virus and anti malware software is a MUST to keep your self protected from the dangers on the internet.
There is more Malware than viruses now and I choose to protect my desktop and laptop devices with Windows Defender and MalwareBytes.
Windows Defener comes included with Windows 10, and MalwareBytes has a free version alythough I use the paid for version for the added benefits. The MalwareBytes site can be found here.