Gets the OEM Windows 10 Key from UEFI.

GetUEFIWindowsKey.ps1

$wmicOutput = ((wmic path softwarelicensingservice get OA3xOriginalProductKey) | Out-String).Replace("`n", "");

$regexMatch = [regex]::Match($wmicOutput, "(?<orgKey>[a-zA-Z0-9]+-[a-zA-Z0-9]+-[a-zA-Z0-9]+-[a-zA-Z0-9]+-[a-zA-Z0-9]+)");

if ($regexMatch.Success)
{
    echo "Found Key from UEFI BIOS";
    $key = $regexMatch.Groups["orgKey"];
    Set-Clipboard $key;
    echo "$key; Copied to Clipboard.";
} else {
    echo "No key found.";
}
pause;