Hi Denisdiamond,
You can follow this path: Start > Settings > Devices > Bluetooth and other devices to see if there is a Bluetooth on your laptop.
And if you want to connect a Bluetooth to laptop, you should make sure the Bluetooth function is turn on.
And here are two articles you can learn more about how to use Bluetooth on laptop:
https://windows10skill.com/connect-creative-bluetooth-speaker-to-laptop/
This article you can see how to connect a bluetooth speaker to laptop, bluetooth keyboard, and bluetooth mouse to laptop.
If you want to connect mobile Bluetooth to laptop, there is something different, it needs a pairing code, and this is the tutorial:
https://windows10skill.com/connect-xiaomi-phone-to-laptop-via-bluetooth/
And if you connect your Bluetooth to laptop, but it does not work or does not recognized by laptop, you can try this tutorial:
https://windows10skill.com/bluetooth-speaker-not-detected-on-windows-10/
Wish this helps.