To avoid hear beeps when a system error in Windows XP, you can configure the registry editor. To do this go to:
  1. Start and Run or simply with the keyboard by typing Win + R

    Then:
  2. Type regedit to go in the system registry
  3. Go to HKEY_CURRENT_USER \ ControlPanel \ Sound
  4. The key Beep right-click and click edit. In the field Value data type and no ok.
  5. The Extended key Sounds repeat the same operation.
  6. Exit the Registry Editor and restart the computer.