Why is my PC showing BitLocker?

I'm curious, why is my PC suddenly displaying BitLocker? It's not something I've ever encountered before, and it's causing quite a bit of confusion. Could it be related to some recent changes I've made to my system? Or is it a security feature that's been activated without my knowledge? I'm not too familiar with BitLocker and its workings, so any insight you could provide would be greatly appreciated. I'd like to understand what's causing this issue and how I can resolve it without compromising the security of my device.