1. Locate the master power window switch on the driver's side door panel.
2. Press and hold the "Unlock" button on the master power window switch.
3. While holding the "Unlock" button, press the corresponding window switch for the window you want to unlock.
4. Continue to hold the "Unlock" button until the window is fully unlocked.
5. Repeat steps 2-4 for any other windows you want to unlock.
If the power windows do not unlock after following these steps, there may be a problem with the power window system. You will need to take your car to a qualified mechanic to have the system diagnosed and repaired.