Funny situation

Recently, my laptop somehow began to buzz, although I used to work with virtually no sound. I decided to treat it: I took a vacuum cleaner, vacuumed all the gaps, pulled out a large piece of dust from under the grille of the radiator fan. Well, I would stop at this, but no - I got out, I tensed, why not clean the clave in one. I clean it - out of all the keys, the vacuum cleaner ate for some reason the only Windows key. I do not use it, but something has become thoughtful, maybe this is a sign?