19.2.13 Export Certificates as REG files

Export-CertificatesReg.ps1

$Certs = Get-ChildItem -Path Cert:\LocalMachine -Recurse | `
Where-Object {$_.PSIsContainer -eq $false} | `
Select-Object -Property FriendlyName, Thumbprint, Issuer, Subject, Handle, PSPath | `
Sort-Object FriendlyName | `
Out-GridView -PassThru

foreach ($Cert in $Certs) {
    $Reg = @()
    $Reg = Get-ChildItem -Path ('HKLM:\SOFTWARE\Microsoft\SystemCertificates',`
    'HKLM:\SOFTWARE\Policies\Microsoft\SystemCertificates',`
    'HKLM:\SOFTWARE\Microsoft\EnterpriseCertificates') -Recurse | `
    Select-Object -Property * | `
    Where-Object {$_.Name -like "*$($Cert.Thumbprint)*"}

    Write-Host "$($Cert.FriendlyName)"
    foreach ($R in $Reg) {
        Write-Host "$($R.Name)"
        $ver = Get-Random
        Write-Host "Exporting to $env:Temp\$($Cert.Thumbprint)-$($Cert.Handle)-$ver.reg" -ForegroundColor DarkGray
        reg export "$($R.Name)" "$env:Temp\$($Cert.Thumbprint)-$($Cert.Handle)-$ver.reg"
    }
}

19.2.13 Modified to assign Random Number as multiple entries were exporting under the same export REG file