Why are certain keys on my keyboard only working when others are pressed at the same time?

[Microsoft Windows]

A while back, on my laptop keyboard the keys t, y, o, and tab, simply don't work, unless another key is pressed at the same time. I am a typically fast typer so it was very inconvenient to have to turn on caps lock, then hold shift to type anything. Over time it just became increasingly annoying, but I've been searching everywhere for a fix, but have not found one, I was hoping to find some help here. It's most likely not a physical problem, as if I hold another key I can still type normally(hints to how I'm writing this), so I think it may be a setting or something I accidentally turned on.I

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