Q. Can I run more than one anti-virus/malware scanner on my Windows system?
A. Can you? Yes. Should you? It depends.
Everything you install on your Windows-based system take up resources. Everything that runs on your system, either actively or in the background, also take up system resources. The CPU, memory, and hard drive space on your device are commodities and they have physical limitations.
All of this comes into play when answering the question about having multiple anti-virus/malware scanners installed on your device.
Before we get into the question of “How many anti-virus scanners should you have?” let’s make sure we all understand one truth: You should have at least one anti-virus/malware scanner on your system that performs real-time scanning of files, downloads, and other activity on your device to prevent any infections from occurring.