Why do my Bluetooth headphones keep disconnecting from my PC?

I have a decently strong PC, that didnt have Bluetooth capabilities. I decided to try to rectify this by just getting one of the cheap USB Bluetooth Adaptors online. It finally arrived, and when I try to sync my Galaxy Buds (I freaking love these earbuds), it connects great, then just disconnects after a few mins of working. I tried getting any lingering updates from Microsoft thinking it might fix it, but it still has the same issue. Any thoughts on how I can fix this? 

I thought about re-installing Bluetooth drivers, but since its a plug-and-play adapter, Im not sure how to do that.