keyboard mulfunction

[Renzhi Zhao]

My windows laptop recently experienced wired malfunctions on my keyboard.Sometimes some keys didn't work. When I pressed it very hard several times, these keys started to work again. After a little while, some other keys didn't work. When I pressed it very hard several times, these keys also started to work again. And so on.If it is not a physical problem with my laptop keyboard, how could I fix this issue?(I already tried updating or reinstalling the keyboard driver, but it doesn't work for me.)Thank you very much!

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