Bluetooth cannot discover any new devices

Question

Hi,

I'm having a problem with Bluetooth on my PC. Bluetooth is enabled and Windows recognizes the Bluetooth adapter, but my PC cannot discover any new Bluetooth devices.

This has been happening for a long time and is not specific to a particular device. I have tried different Bluetooth headphones/devices, all in pairing mode, but none of them appear under Settings → Bluetooth & devices → Add device → Bluetooth.

Interestingly, Windows still shows devices that were paired with the PC in the past, but it cannot discover any new devices.

Basic system information:

• Windows 10/11: [your version]
• CPU: Intel Core i7-7500U
• Bluetooth adapter: Qualcomm Atheros Bluetooth 4.0

The Bluetooth adapter appears normally in Device Manager, with no warning or error icon.

Does anyone know what could be preventing Bluetooth from discovering new devices? Could this be a driver or Bluetooth adapter issue?

Thanks!****

Answer 1

In order for your computer to discover a Bluetooth device, the device needs to be in discovery mode. In addition, you should know that a Bluetooth device can only be paired with 7 other Bluetooth devices at the same time.

Answer 2

Hi ,

Search for msinfo32.exe in the search bar, take a screenshot, and post it here so we can see the correct laptop model or desktop configuration.

Thanks

Answer 3

Since the adapter appears in Device Manager with no warning icon, the most likely causes are Bluetooth discovery settings, a driver issue, or a Windows Bluetooth stack problem rather than the paired devices themselves.

Try this in order:

1. Confirm Bluetooth is on
   • Windows 11: Start > Settings > Bluetooth & devices and make sure Bluetooth is on.
   • Windows 10: Start > Settings > Devices > Bluetooth & other devices and make sure Bluetooth is on.
   • If using a laptop with a physical Bluetooth switch, make sure it is turned on.
2. Toggle Bluetooth off and back on
   • Go to Start > Settings > Bluetooth & devices.
   • Turn Bluetooth off, wait 10 seconds, then turn it back on.
   • Try pairing again.
3. Verify the device side
   • Make sure each headset/device is actually in pairing mode, powered on, charged, and within range.
   • Turn the Bluetooth device off, wait a few seconds, then turn it back on.
   • If possible, move it closer to the PC.
   • If there are USB 3.0 devices connected nearby, move the Bluetooth device away from them because unshielded USB devices can interfere with Bluetooth connections.
4. Check Bluetooth discovery settings
   • Windows 11:
     • Go to Start > Settings > Bluetooth & devices > Devices.
     • Under Device settings > Bluetooth devices discovery, change the setting to Advanced.
   • Windows 10:
     • Go to Start > Settings > Devices > Bluetooth & other devices.
     • Select More Bluetooth options.
     • On the Options tab, check Allow Bluetooth devices to find this PC.
5. Run the Bluetooth troubleshooter
   • In Windows 10 or 11, run the automated Bluetooth troubleshooter in the Get Help app: Run the troubleshooter in Get Help
6. Check for Windows updates
   • Go to Start > Settings > Windows Update.
   • Select Check for updates and install anything available.
7. Update the Bluetooth driver
   • Open Device Manager.
   • Expand Bluetooth.
   • Right-click the Qualcomm Atheros Bluetooth adapter.
   • Select Update driver > Search automatically for updated driver software.
   • Restart the PC if prompted.
   • If Windows does not find a newer driver, download the latest Bluetooth driver from the PC manufacturer and install it manually.
8. Reinstall the Bluetooth adapter
   • This can temporarily remove Bluetooth until Windows reinstalls the driver.
   • In Device Manager, expand Bluetooth.
   • Right-click the Bluetooth adapter and select Uninstall device.
   • Shut down the PC, wait a few seconds, then turn it back on.
   • Windows should try to reinstall the driver automatically.
   • If it does not, open Device Manager and use Action > Scan for hardware changes.
9. Restart the PC
   • Select Start > Power > Restart.

If the PC still cannot discover any new devices after changing discovery settings, updating/reinstalling the driver, and confirming multiple devices are in pairing mode, that points more strongly to a Bluetooth adapter or driver compatibility issue.

Also note: if this is Windows 10, support ended on October 14, 2025.

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