Some keys on keyboard not working windows 7 pad

I have a few keys on my Toshiba that have stopped working. Specifically, Z, ?/, and all of the arrows. Oh no, the keyboard on your laptop stopped working! Here are some fixes to help you get back to your previously scheduled typing.I have same problem with Satellite L450D running Windows Home Premium 64bit. Keyboard works in BIOS and allows me to enter password.

If that does not work, try hitting one of the keys to go to the BIOS setup, see if they keys work in there. If not, you need to reseat the keyboard connections to the motherboard.

Troubleshoot keyboard problems - Windows - Microsoft

Certain keys on my keyboard have stopped working. Some include the Backspace, both enter keys, the left shift, and the entire number pad to the right of the keyboard.

The keyboard and touchpad worked smoothly. Later on, my numberpad doesn't work, as well as some letters.After some brief surfing around this morning I went to work with my macbook running fine as usual. After coming home my keyboard and trackpad are both unresponsive. Sony VAIO laptop VPCEA4S1E running Windows Home Premium (64bits).Since a couple of days I have a strange keyboard problem: some keys ( p, Backspace, F F F F F FF12) are not working as expected.