Windows Defender is a capable antivirus solution built into Windows itself. Unless you’ve installed a different antivirus program on your Windows 11 or Windows 10 PC, your PC is using it right now.

Because it shields your online identity at an affordable price, Malwarebytes is hands-down the best antivirus program for Windows machines in 2025. Below is a brief table comparing it to the rest ...

If all else fails, it might be time to uninstall your antivirus program. Some antivirus are real resource hogs, and itâ s arguable how much value youâ re getting from commercial antivirus programs.