Microsoft Windows Defender Security Center protects Windows 10 PCs that have no other antivirus protection, which is a good thing. But the best third-party free antivirus tools are more effective.

Update, March 31, 2025: This story, originally published March 29, has been updated with an explanation of LOLBINS as well as further technical information regarding the Windows Defender Application ...

Microsoft Windows Defender Security Center is more than just antivirus. From its main window you can also manage Windows Firewall, SmartScreen Filter, and Microsoft's parental control system, as well ...

Microsoft Windows Defender Security Center protects Windows 10 PCs that have no other antivirus protection, and it has significantly improved in lab test results and our own hands-on tests. By Neil J.