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description Microsoft Defender Antivirus Overview
Microsoft Defender Antivirus is built into Windows 10 and 11 and provides a baseline level of protection. It utilizes cloud-delivered protection and ransomware protection. Exploit Guard helps prevent malware from running. While it's convenient and free, it may not offer the same level of protection as dedicated antivirus suites.
help Microsoft Defender Antivirus FAQ
What is Microsoft Defender Antivirus?
Microsoft Defender Antivirus is built into Windows 10 and 11 and provides a baseline level of protection. It utilizes cloud-delivered protection and ransomware protection. Exploit Guard helps prevent malware from running. While it's convenient and free, it may not offer the same level of protection as dedicated antivirus suites.
How good is Microsoft Defender Antivirus?
Microsoft Defender Antivirus scores 6.0/10 (Fair) on Lunoo, making it rated in the Antivirus category.
What are the best alternatives to Microsoft Defender Antivirus?
See our alternatives page for Microsoft Defender Antivirus for a ranked list with scores. Top alternatives include: Avast Premium Security, Kaspersky Security Cloud Free, Avira Premium Security.
How does Microsoft Defender Antivirus compare to Avast Premium Security?
See our detailed comparison of Microsoft Defender Antivirus vs Avast Premium Security with scores, features, and an AI-powered verdict.
Is Microsoft Defender Antivirus worth it in 2026?
With a score of 6.0/10, Microsoft Defender Antivirus is a solid option in Antivirus. See all Antivirus ranked.
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