The BIOS function enables you to disable the built-in devices such as those listed below. You can use this function to prohibit external connections and communications.
USB Ports
Memory Card Slot
Wireless Device
LAN Device (LAN port equipped models)
The VAIO Care (Rescue Mode) screen appears.
Enter a password if it has already been set.
The BIOS setup screen appears.
When you select Disabled:
The selected device is disabled.
When you select Enabled:
The selected device is enabled and can be used on your VAIO computer.
At the confirmation prompt, press the Enter key.
Devices you can disable vary depending on the model.
Even if you restrict the use of the wireless device, you cannot disable NFC/One-touch functions.