Some keys stopped working

Hey everyone, I could really use some help here!
So, I’ve got this General Electric Satellite laptop that’s just over a year old, and while I was right in the middle of working, half the keys just randomly quit on me. Since then, it’s been acting super weird—every time I power it up, the hardware turns on fine, but the OS won't actually boot unless I keep mashing the spacebar. Since it’s still under warranty, I dropped it off at the repair center, and they told me they'd call me back once they figure out why the keyboard is apparently blocking the system from booting. Does that even make sense? Like, can a busted keyboard actually stop an entire computer from starting up?

Of course it matters. Take a desktop PC, for example; if the keyboard is malfunctioning, the whole system might refuse to boot up entirely, throwing an error right when the BIOS is trying to initialize. I'm surprised the service center didn't just swap it out for you. Unless, of course, you spilled something on it or something, in which case they aren't going to touch it under warranty, let's be real.