AV-TEST, which tests and ranks antivirus solutions, has conducted its first Windows 11-based security test. However, Defender, despite all of Microsoft's touting, has managed to come in last place.

For most people using a supported and fully updated Windows 11 computer, yes: Microsoft Defender Antivirus and the other protections inside Windows Security are sufficient as the primary antivirus.

After a poor showing in the last AV-TEST results, Microsoft Defender has once again managed to fare much better. Curiously, this coincides with the test bed moving back to Windows 10 from 11.