If Bluetooth is enabled but still not working, restart the Bluetooth Support Service: press Win + R → type services.msc → find “Bluetooth Support Service” → right-click → Restart.
In case you don't see the BT option anywhere, either your PC doesn't have it or the drive isn't installed. Follow the steps to check if it is present in your system: right-click Start > Device Manager > look for "Bluetooth" in the list)