Published Jul 11, 2017 | Updated Sep 24, 2018


Severe |Detected with Windows Defender Antivirus

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Windows Defender Antivirus next-gen machine learning technologies uses the cloud and artificial intelligence powered by to rapidly deliver protection against new and emerging malware.

This detection, made possible by cloud-based machine learning, defends against multiple types of emerging malware that perform various malicious actions on your PC.

Understand how malware can get on your PC


Our layered approach to intelligent, cloud-based protection employs a diverse set of machine learning models designed to catch the wide range of threats: from massive malware campaigns to small-scale, localized attacks. Read more:     Small businesses targeted by highly localized Ursnif campaign

Windows Defender Antivirus Updating your antimalware definitions automatically removes threats as they are detected. However, many infections can leave remnant files and system changes. and running a full scan might help address these remnant artifacts.

You can also visit our or search the for more help.advanced troubleshooting pageMicrosoft virus and malware community

To get the best and fastest protection from Windows Defender Antivirus, connect to the cloud protection service.

Use the Windows search box to find and open the . Navigate to the .Windows Defender Security CenterVirus & threat protection settings

To prevent future infection, follow our guide on .preventing malware infection

If you suspect that your files have been incorrectly detected, .submit the file for analysis

Secure configuration
Prevent malware infection
Report incorrect detections
  • Cloud-delivered protection
  • Automatic sample submission
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