Export all certificates from Windows trust store CA Root

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ca ca-certificates ca-trust cert certificate certificates certs dump export root store trust windows

# Initialize an empty string to hold the PEM encoded certificates
$certContent = ""

Get-ChildItem Cert:\LocalMachine\Root |
Foreach-Object {
    # Convert the certificate to Base64 and format it as PEM
    $pem = "-----BEGIN CERTIFICATE-----`r`n" + 
          [System.Convert]::ToBase64String(
                     $_.Export([System.Security.Cryptography.X509Certificates.X509ContentType]::Cert
           ),
            [System.Base64FormattingOptions]::InsertLineBreaks) + 
                "`r`n-----END CERTIFICATE-----`r`n"

     $certContent += $pem
}

# Write the PEM content to the output file
Set-Content -Path ca-certificates.pem -Value $certContent