The keyboard and touchpad do not work in the operating system, but keyboard does work in the BIOS.

Follow the steps below to resolve the issue:

NOTE: Some VAIO® notebooks include a feature which allows the touchpad and touchpad buttons to be disabled using the Fn+F1 keys on the built-in keyboard. Try holding down the Fn key and press the F1 key to see if the touchpad and touchpad buttons are re-enabled.

1. Start the computer in Safe Mode  and confirm if the keyboard and touchpad are functional.

   NOTE: If the keyboard and touchpad are functional in Safe Mode then this is likely a software issue.

2. Confirm that the touchpad is enabled in both the VAIO Control Center and the Device Manager.
   1. Within the VAIO Control Center:
      1. Point to (but do not click) the lower-right or top-right corner of the screen, and then click to select the Search charm.

         NOTE: The Windows Logo + Q key combination will also take you to the Search screen.

      2. In the Search screen, in the Search field type VAIO Control Center, and then press the Enter key.
      3. In the VAIO Control Center window, click Mouse and Keyboard or Input Device.
      4. Make sure the Touch Pad is turned on.
   2. Within the Device Manager:
      1. Press the Windows Logo + X key combination on the keyboard and, from the list, click Device Manager.

         NOTES: Because the Device Manager is a traditional Windows Desktop application, if you were not already there, the interface will change to the Desktop and the Device Manager window will open.

      2. In the Device Manager window, double-click Mice and other pointing devices.
      3. Under Mice and other pointing devices, double-click each pointing device to ensure the device status states: This device is working properly.

         NOTE: If the Device status states that the device is not working properly, remove each device driver  under Mice and other pointing devices then restart the computer.

   3. Confirm that the keyboard is enabled in the Device Manager:
      1. Press the Windows Logo + X key combination on the keyboard and, from the list, click Device Manager.
      2. In the Device Manager window, double-click Keyboards, then double-click the Keyboard Device.
      3. Ensure the Device status states, This device is working properly.

         NOTE: If the Device status states that the device is not working properly, remove the device driver  under Keyboards, then restart the computer.

3. If the keyboard and touchpad work in Safe Mode then, while still in Safe Mode, remove all third-party keyboard and touchpad software and restart the computer.
4. If the keyboard and touchpad do not work in Safe Mode then it is likely a hardware issue and the computer will require service.  Go to Product Repair.