Why is the microphone in my headset not registering on my laptop?

My headset worked fine 3 weeks ago and now it doesn’t register, even though its plugged in, my device manager doesn’t even show it there and every time I troubleshoot it, it just says that nothing is plugged in even though I’m 100% aware that it actually is! And I tried to uninstall my driver and then restart my computer and still not working, I’ve tried to roll back my driver to a older one from before when it used to work still nothing, but I know the microphone in the headset works cause I tested it on my moms laptop and the headphones part work fine sound comes through them great, I don’t know what happened. Help please?