Yes, answer the question, you are encouraged to answer your own question, how simple it is, is irrelevant, you can even accept your own answer (though you don't get the +15 or +2 rep).

Many people overlook things and we have all asked questions like this, it seems reasonable, to me, that if you overlooked this, then others may too but don't write anything like " don't be stupid.", keep it professional.

Don't edit it in to your question like you have currently, use the answer space for the answer and you should mention the laptop make and model, if you think it is specific to that hardware.

There is no need for you to come back and delete it, it will be fine.