A few months ago I tried pairing my bluetooth speaker to my computer and it works perfectly I listen to it for a couple of hours but now when I tried to paired my BT aomais speaker it doesn't work, I don't know exactly when this stops working because I only had a few counts using the bluetooth pairing and also I tried searching my computer from my samsung galaxy note 9 but it's not listed there and also I always keep my OS updated (windows 10) I'm thinking it's must be because of that it produce compatibility issue?
I tried updating the bluetooth driver but it's still not working I'm thinking to do an clean install but I think I might get a better suggestion how to troubleshoot this.

Here's a bit detail for my pc specs:
1. Maximus Formula VIII
2. Intel i7-6700

Thanks in advance.