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Microsoft Malware Protection Center (MMPC) is now Windows Defender Security Intelligence (WDSI). Watch out for even more info about threats and protecting you and your Windows computer.
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Unable to update the Windows 10 Defender's definitions
Updating Virus and Spyware Definitions
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Updating Virus and Spyware Definitions
Windows Defender will not turn on in Windows 10
Getting Started and Upgrading
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Scanning, Detecting, and Removing Threats
Windows Defender Antivirus
Getting Started and Upgrading
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Scanning, Detecting, and Removing Threats
