Free Anti Virus -

: Very popular with tons of extra features like a Wi-Fi inspector, though it can be a bit "noisier" with upgrade alerts.

: It’s lightweight and doesn't slow down your system. free anti virus

: Owned by Avast and uses the same core technology, but with a different layout. : Very popular with tons of extra features

If you want an extra layer or a different interface, these are the most highly-rated free versions as of early 2026: free anti virus

For most users, the built-in protection on your computer is now considered "top-tier" and often eliminates the need for third-party free software. 🛡️ The Best "Built-In" Option : This is already on your Windows PC.

: Recent tests show it catching 100% of major threats.