To unlock a laptop keyboard, a common and effective method is to press and hold the right Shift key for 8 to 10 seconds until you hear a beep sound, indicating the keyboard is unlocked. This action toggles the "Filter Keys" setting, which when enabled, can lock the keyboard input. If the keyboard remains locked or unresponsive, checking the device manager to ensure the keyboard device is enabled or restarting the laptop may also help. Alternatively, pressing the Fn key along with keys like Scroll Lock or Num Lock simultaneously can reset the keyboard lock on some laptops. If the keyboard does not work at the login screen, using the On-Screen Keyboard via the Ease of Access button or connecting an external keyboard are practical workarounds to unlock the laptop. These methods generally apply to Windows laptops but may vary slightly by manufacturer and model.
