What if You Receive Unknown Bluetooth Device Error? 4 Fixes

Unknown Bluetooth Device Error

Windows 11/10 allows you to connect a Bluetooth device to the computer, such as a Bluetooth keyboard, mouse, speaker, headphone, etc. To do this thing, make sure you enable Bluetooth, then add your device, and Windows will automatically search for it to finish the pairing. However, the unknown Bluetooth device error prevents you from building the connection.

This means the system can’t identify the connected device. This can occur if the device doesn’t transmit enough identifying information or is malfunctioning, or there are some issues with the Bluetooth driver or service.

If you are grappling with the unknown error, let’s explore how to fix it.

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Basic Checks

Before troubleshooting the issue, perform some basic checks, as follows:

1. Disable Bluetooth on your PC and Bluetooth device, and re-enable it to see if there is something wrong.
2. Check if there is any possible interference from other wireless devices.
3. Make sure your Bluetooth device has sufficient power. If the battery is drained, replace it.
4. Try to connect the Bluetooth device to another computer to check if it works.
5. Unpair the unknown device, forget it, then repair.

Fix 1: Run 2 Troubleshooters

Windows 11/10 comes with many troubleshooters to solve different issues on the computer. To fix the unknown Bluetooth device error, we recommend running the Bluetooth troubleshooter.

Step 1: Press the Start button and hit Settings.

Step 2: On Windows 10, go to Update & Security > Troubleshoot > Additional troubleshooters. Locate Bluetooth and click Run the troubleshooter.

On Windows 11, head to System > Troubleshoot > Other troubleshooters, find Bluetooth, and click the Run button.

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Fix 2: Uninstall & Reinstall or Update Bluetooth Driver

When Windows shows Bluetooth unknown, uninstalling and reinstalling the corrupt Bluetooth driver sometimes works.

Here is how to do it:

Step 1: Press Win + X and choose Device Manager to open this tool.

Step 2: Expand Bluetooth, right-click on your device, and choose Uninstall device.

Step 3: Restart the system, and it will automatically reinstall the driver.

Or, you can right-click the Bluetooth device and select Update driver to update the Bluetooth driver if it is an outdated version. Then, the unknown error should be fixed. If not, proceed.

Fix 3: Restart Bluetooth Support Service

Bluetooth Support Service is a critical service in Windows since it enables the functionality of Bluetooth on the computer. If it is stopped, Windows cannot detect your connected Bluetooth device and fails to finish the pairing. To address the unknown Bluetooth device error, make sure you enable this service.

Step 1: In Windows Search, type services.msc and press Enter to open Services.

Step 2: Find Bluetooth Support Service, right-click on it, and choose Start if it is stopped. If it is running, choose Restart.

Step 3: Open its properties window by right-clicking the service and hitting Properties. Then, choose Automatic in the Startup type field.

Step 4: Hit Apply > OK.

Fix 4: Install Windows Updates

If Bluetooth shows all devices as unknown after trying all workarounds, your PC may miss some important updates. So, ensure your system is up-to-date.

Before installing Windows updates, run the backup software, MiniTool ShadowMaker, to back up your PC, since update issues can cause data loss or system crashes. Install it and get started.

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Then, go to Settings and access the Windows Update page. Next, check for available updates and install them on the machine.

Bottom Line

Don’t panic if Windows shows Bluetooth as unknown. This post covers 4 useful ways to solve the unknown Bluetooth device error. Try them one by one to fix your issue so you can use a Bluetooth device on your computer seamlessly.