Malwarebytes Premium: The Best Cleaner in the Business, But Not a Complete Antivirus

Let's Be Clear About What Malwarebytes Is

Malwarebytes built its reputation as a secondary scanner — a tool you ran alongside your main antivirus to catch things it might have missed. For years, the free version was the go-to recommendation when someone showed up to a forum with an infected machine. That reputation is entirely earned. At detecting and removing active infections, it remains the best I've tested.

The Premium version adds real-time protection, making it viable as a standalone product. That's what I tested. And the honest answer is: it works, but it has gaps compared to full-featured suites, and the pricing doesn't reflect those gaps particularly well.

What's Included

Malwarebytes Premium covers Windows, Mac, Android, and iOS. You get real-time malware protection, ransomware protection, a browser extension for malicious site blocking, and exploit protection for browser and document vulnerabilities. What you don't get: a firewall (it relies on Windows Firewall), VPN (sold separately), parental controls, cloud backup, or a password manager. It's a focused product, which has advantages and disadvantages depending on what you need.

Detection: Good, But Not Top of the Field

Across three months of testing with my standard methodology, Malwarebytes caught 96.8% of samples. That's a meaningful step below Bitdefender (99.4%) and Kaspersky (99.1%). For known malware strains and common attack vectors, it's perfectly capable. For novel, zero-day threats and sophisticated evasion techniques, independent lab data (and my testing) suggests it's more likely to miss than the top-tier products.

Where it excels is in removing infections after the fact. If I deliberately infected a test machine and then ran Malwarebytes, it cleaned up more thoroughly than any other tool I tested. For remediation, it's unmatched.

Performance: Very Light

Boot overhead was 5-6 seconds. Background CPU usage is minimal. This is one of the lightest products I've tested from a performance standpoint — partly because it does less than the full suites. If you're on older hardware or a slower machine, that's a relevant consideration.

The Use Case That Actually Makes Sense

Run Malwarebytes Premium as a complement to Windows Defender, not as a replacement. Windows Defender has improved significantly and handles real-time protection reasonably well. Malwarebytes adds a second layer with different detection logic, particularly for adware, PUPs (potentially unwanted programs), and browser-based threats. That combination — free Defender plus paid Malwarebytes — costs less than most full suites and covers most real-world threats.

As a sole product on a Windows 11 machine, you're leaving yourself exposed compared to what Bitdefender or ESET offer at similar prices.