EC2 Image Builder fails on Windows Server 2022 Core with update-windows component: Defender update KB2267602 fails with ResultCode: '[4-Failed]'

This is a common issue with Windows Server Core updates, particularly with Microsoft Defender updates. Here are the recommended approaches to resolve this:

1. First Approach - Update Configuration:

# Create a component that runs before update-windows
$script = @'
# Stop Windows Update and Defender services
Stop-Service -Name wuauserv -Force
Stop-Service -Name WinDefend -Force

# Wait for services to stop completely
Start-Sleep -Seconds 10

# Start services again
Start-Service wuauserv
Start-Service WinDefend

# Wait for services to start
Start-Sleep -Seconds 30

# Clear Windows Update cache
Remove-Item "$env:SystemRoot\SoftwareDistribution\*" -Recurse -Force
'@

2. Second Approach - Exclude Defender Updates: Create a custom component that configures Windows Update to exclude Defender updates:

# Configure Windows Update to exclude Defender updates
$script = @'
$updateSession = New-Object -ComObject Microsoft.Update.Session
$updateSearcher = $updateSession.CreateUpdateSearcher()
$searchResult = $updateSearcher.Search("IsInstalled=0")

foreach ($update in $searchResult.Updates) {
    if ($update.Title -like "*Defender*") {
        $update.AutoSelectOnWebSites = $false
    }
}
'@

3. Third Approach - Use AWS-UpdateWindowsAmi Component: Instead of using update-windows, you could use the AWS-UpdateWindowsAmi component, which has better handling for Defender updates:

- name: UpdateWindows
  action: ExecutePowerShell
  inputs:
    commands:
      - |
        Install-WindowsFeature -Name UpdateServices-Services
        Start-Sleep -Seconds 30
        Install-WindowsUpdate -AcceptAll -IgnoreReboot

Key Implementation Notes:

1. Component Ordering:

   • Ensure your custom component runs BEFORE the update-windows component
   • Set the appropriate dependencies in your recipe

2. Error Handling: Add error handling to your custom component:

try {
    # Your update script here
    exit 0
} catch {
    Write-Error $_.Exception.Message
    exit 1
}

3. Infrastructure Configuration:

infrastructureConfiguration:
  instanceType: t3.medium  # Recommend minimum t3.medium
  terminateInstanceOnFailure: true
  subnetId: subnet----# Optional: specify custom subnet

4. Timeouts:
   • Consider increasing the timeout settings in your Image Builder configuration
   • Default timeout might not be sufficient for all updates

Best Practices:

1. Monitor Build Logs:

   • Enable enhanced logging in EC2 Image Builder
   • Monitor CloudWatch Logs for detailed troubleshooting

2. Testing:

   • Test the build process in a development environment first
   • Validate updates are applying correctly using:

Get-HotFix | Sort-Object InstalledOn -Descending

3. Version Control:
   • Maintain version control for your components and recipes
   • Document any specific update exclusions or configurations

If these solutions don't resolve the issue, you might want to:

• Review Windows Update logs at C:\Windows\Logs\WindowsUpdate
• Check if there are any network connectivity issues
• Verify there's sufficient disk space (at least 20GB free recommended)
• Consider using a larger instance type during the build process