Since the launch of Windows 8 in 2012, Microsoft has integrated antivirus protection into the operating system, making it unnecessary for users to pay for essential protection. Microsoft Defender Antivirus has improved significantly, achieving a score of 6 out of 6 in AV-Test's July–August 2026 results, successfully detecting 100 percent of threats. Modern cyber threats primarily involve social engineering rather than traditional viruses, prompting third-party antivirus companies to offer core protection as a free tier while promoting premium subscriptions with additional features. Many users find that third-party antivirus software can degrade their computing experience due to nagware, performance hits, and inferior bundled tools compared to standalone services. Microsoft Defender, along with modern web browsers that provide anti-phishing security, is sufficient for most users.