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.

Microsoft has denied claims that its home-built Windows 10 antivirus could be putting users at risk from online attack. Doubts had been raised over the security of Windows Defender after Microsoft ...

Microsoft Defender Antivirus, built into Windows 10 and 11, takes on malware defense for any PC that doesn’t have a third-party antivirus app installed. When you install a standalone antivirus, it ...

Microsoft no longer officially supports Windows 10, so do this if you want to keep using your older PC securely.

Windows Defender is a crucial security tool designed to protect your system from harmful files and malware in Windows 11/10. However, dealing with it can sometimes be frustrating, as it mistakenly ...

Microsoft's own antivirus service comes pre-installed on Windows, but our expert antivirus tests prove there are better alternatives. Tom MorganSenior Consumer Writer With over a decade of experience ...

Michael joined Which? in 2017 and is the senior researcher on the Cars team. He’s passionate about improving safety and fairness for all road users — from drivers to pedestrians. Our cyber-security ...

Microsoft says Windows 10 home users who want to delay switching to Windows 11 can enroll in the Extended Security Updates (ESU) program at no additional cost using Microsoft Rewards points or ...

Q: Are Windows Defender warnings that pop up with a phone number legit? A: Microsoft’s built-in security tool has improved over the years, and it still blocks plenty of everyday threats. But the ...