Is it an Acer laptop? If so: try F7 (without the Fn modifier). On my Acer F7 toggles the touchpad on and off. In BIOS I think, bypasses whatever OS you're running.
If that doesn't work, try some other F keys.
Is it an Acer laptop? If so: try F7 (without the Fn modifier). On my Acer F7 toggles the touchpad on and off. In BIOS I think, bypasses whatever OS you're running.
If that doesn't work, try some other F keys.