Hi Katarina,
Thanks for posting your question here. This happens because Windows can’t see the Bluetooth hardware at all, usually due to a power‑state or firmware glitch.To fix this, please follow the steps below:
Perform a full power reset (shut down, unplug the device, hold the power button for 20–30 seconds, then restart), ensure Bluetooth and wireless are enabled in BIOS, restart Bluetooth Support Services, uninstall both the Intel Wi‑Fi and Bluetooth drivers in Device Manager, then reinstall the correct drivers from your PC manufacturer’s website (Wi‑Fi first, Bluetooth second). Also disable Fast Startup and turn off power‑saving options for the Wi‑Fi/Bluetooth adapters to prevent the issue from recurring.
You may also refer to this link: Fix Bluetooth problems in Windows
Let me know if you have more questions, I'm here to help.
Thanks,
Jobelle C.