Symptoms
- No Internet connection in Windows.
 - Microsoft Security Essentials antivirus is installed.
 In Event Viewer (CMD+R > eventvwr.msc > Windows Logs > System) following errors are presented:
Event ID 3002 Microsoft Antimalware Real-Time Protection feature has encountered an error and failed. Feature: Network Inspection System Error Code: 0x80070005 Error description: Access is denied. Reason: The system is missing updates that are required for running Network Inspection System. Install the required updates and restart the computer
Cause
Microsoft Security Essentials updates are not installed.
Resolution
- Uninstall Microsoft Security Essentials antivirus.
 - Restart Windows. Check that Internet connection is working now.
 - Download Microsoft Security Essentials antivirus from the official web page and install all updates that will be suggested.
 - Restart Windows and check that Internet connection is still working fine.
 
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