I had a cat who did this. I loved it and was a bit disappointed when he stopped a few weeks later.
You said he is young. He will likely calm down as he gets older.
If the crying really bothers you, pick up the bowl as soon as he stops eating and don’t put it down again until the next meal. Then there will be fewer clues when it is time for food. He will still know, but it will require more effort on his part.
You only need a key to activate Windows. Windows 10 and later will install and run just fine without activation.