Function readWindowsId

app/src/Licensing/MachineID.cpp:123–160

* @brief Reads the Windows MachineGuid and system UUID, requiring both since a * partial read degrades the fingerprint; the PowerShell UUID query gets a long * timeout so a cold start cannot drop it. */

 * timeout so a cold start cannot drop it.
 */
static QString readWindowsId(bool& complete)
{
  QProcess process;
  QString machineGuid, uuid;

  auto systemRoot = qEnvironmentVariable("SystemRoot");
  if (systemRoot.isEmpty())
    systemRoot = QStringLiteral("C:\\Windows");

  const auto system32 = systemRoot + QStringLiteral("\\System32\\");
  const auto regTool  = resolveSystemTool({system32 + "reg.exe"}, "reg");

  process.start(
    regTool,
    {"query", "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Cryptography", "/v", "MachineGuid"});
  awaitTool(process);
  QString output    = process.readAllStandardOutput();
  QStringList lines = output.split("\n");
  for (const QString& line : std::as_const(lines)) {
    if (line.contains("MachineGuid")) {
      machineGuid = line.split(" ").last().trimmed();
      break;
    }
  }

  const auto psTool =
    resolveSystemTool({system32 + "WindowsPowerShell\\v1.0\\powershell.exe"}, "powershell");
  process.start(psTool,
                {"-ExecutionPolicy",
                 "Bypass",
                 "-command",
                 "(Get-CimInstance -Class Win32_ComputerSystemProduct).UUID"});
  awaitTool(process, 30000);
  uuid = process.readAllStandardOutput().trimmed();

  complete = !machineGuid.isEmpty() && !uuid.isEmpty();
  return machineGuid + uuid;
}
#endif

#if defined(Q_OS_BSD)