diff --git a/aqt/installer.py b/aqt/installer.py
index 58ab3a38..011dc69c 100644
--- a/aqt/installer.py
+++ b/aqt/installer.py
@@ -1591,27 +1591,8 @@ def _get_install_command(self, installer_path: Path) -> list[str]:
         )
         return cmd
 
-    def _exec_qt_installer(self, arguments: list[str], working_dir: str) -> None:
-        """Execute Qt installer with validated arguments."""
-        original_cwd = os.getcwd()
-        os.chdir(working_dir)
-        try:
-            if sys.platform == "win32":
-                os.spawnv(os.P_WAIT, "qt-unified-windows-x64-online.exe", ["qt-unified-windows-x64-online.exe"] + arguments)
-            else:
-                pid = os.fork()
-                if pid == 0:  # Child process
-                    if self.os_name == "mac":
-                        os.execv("qt-unified-macOS-x64-online.dmg", ["qt-unified-macOS-x64-online.dmg"] + arguments)
-                    elif self.os_name == "linux":
-                        os.execv("qt-unified-linux-x64-online.run", ["qt-unified-linux-x64-online.run"] + arguments)
-                    sys.exit(1)
-                else:  # Parent process
-                    _, status = os.waitpid(pid, 0)
-                    if status != 0:
-                        raise RuntimeError(f"Qt installation failed with status {status}")
-        finally:
-            os.chdir(original_cwd)  # Restore original working directory
+    def _exec_qt_installer(self, cmd: list[str], working_dir: str) -> None:
+        subprocess.run(cmd, shell=False, check=True, cwd=working_dir)
 
     def install(self) -> None:
         if (
@@ -1646,13 +1627,7 @@ def install(self) -> None:
                         safe_cmd[email_index + 1] = "********"
                 self.logger.info(f"Running: {' '.join(safe_cmd)}")
 
-                target_path = temp_path / self.ALLOWED_INSTALLERS[self.os_name]
-                if installer_path != target_path:
-                    if target_path.exists():
-                        target_path.unlink()
-                    os.symlink(installer_path, target_path)
-
-                self._exec_qt_installer(cmd[1:], temp_dir)
+                self._exec_qt_installer(cmd, temp_dir)
 
             except subprocess.CalledProcessError as e:
                 self.logger.error(f"Installation failed with exit code {e.returncode}")