Fix Bluetooth Not Showing in Device Manager

If your Bluetooth adapter has vanished from Device Manager, Windows can’t see it, so you can’t pair devices, use wireless headphones, or transfer files. This guide walks you through the most effective fixes, from showing hidden devices to reinstalling drivers and checking BIOS settings.

What You’ll Need

Administrator access to the Windows PC (to install drivers and change settings)
Another device (phone or PC) with internet access to download drivers if the network adapter also fails
A USB Bluetooth dongle (optional, for testing if the built-in adapter is dead)

Step-by-Step

Show hidden devices in Device Manager. Right-click the Start button and select Device Manager. In the menu bar, click View and choose Show hidden devices. Look under the Bluetooth section. If you see a greyed-out adapter, right-click it and select Uninstall device, then click Uninstall in the confirmation dialog. Restart your PC; Windows will reinstall the driver automatically.
Check if Bluetooth is disabled in Windows. Open the Action Center (Win + A) and look for a Bluetooth tile. If it’s grey or missing, click it to enable it. Then go to Settings > Devices > Bluetooth & other devices and ensure the toggle is on.
Run the Bluetooth troubleshooter. Go to Settings > Update & Security (or System > Troubleshoot on Windows 11) > Troubleshoot > Additional troubleshooters. Select Bluetooth and run it. This will scan for issues and apply fixes automatically.
Use the hardware troubleshooter. Open a Command Prompt as administrator (right-click Start, select Windows Terminal (Admin) or Command Prompt (Admin)). Type msdt.exe -id DeviceDiagnostic and press Enter. Follow the prompts to detect hardware problems.
Reinstall the Bluetooth driver manually. In Device Manager, if you see a device with a yellow exclamation mark (often under Other devices or Unknown devices), right-click it and select Update driver > Search automatically. If that fails, right-click and choose Uninstall device, then restart. On reboot, Windows will try to reinstall the driver. If it doesn’t, download the driver from your PC manufacturer’s support site (use another device if needed) and install it.
Check BIOS/UEFI settings. Restart your PC and press the key to enter setup (usually Del, F2, F10, or Esc). Look for Onboard Devices, Wireless, or Integrated Peripherals. Ensure Bluetooth is set to Enabled. Save and exit.
Use the Windows Update catalog. If the driver is missing, go to Settings > Update & Security > Windows Update and click Check for updates. Install all optional updates, which often include driver updates.
Enable Bluetooth in the BIOS if it’s disabled. Some laptops have a hardware switch (F-key or side slider) that disables Bluetooth. Look for a key with a wireless icon (often F2, F3, or F12) and press it to toggle wireless on. If there’s a physical switch, ensure it’s not off.

Common Mistakes

Skipping the restart after uninstalling the driver. Windows needs a full restart to re-detect the hardware.
Using a generic driver from a third-party site. This can cause more problems. Always use the manufacturer’s driver or the one from Windows Update.
Not checking the physical switch. Many laptops have a wireless switch that disables both Wi-Fi and Bluetooth. If Wi-Fi works but Bluetooth doesn’t, the switch is likely not the issue, but still check.
Assuming the adapter is dead. Often it’s just a driver issue. Try a USB Bluetooth dongle to test if the OS supports Bluetooth at all.

Tips

After uninstalling the driver, use Device Manager > Action > Scan for hardware changes to force Windows to detect the adapter without a restart.
If you’re using a desktop PC with a PCIe Bluetooth card, reseat the card in its slot and ensure the internal USB header is connected.
Keep your Windows OS updated. Many Bluetooth issues are fixed with cumulative updates.
If you recently installed new software, consider a System Restore to a point before the issue started.

Troubleshooting

If Bluetooth still doesn’t appear after following the steps:

Check if the adapter is disabled in the BIOS. Re-enter BIOS and look for a setting like “Bluetooth” or “Wireless LAN”. Set it to Enabled. Save and exit.
Use the Windows Media Creation Tool to do an in-place upgrade. This reinstalls Windows while keeping your files and apps. Download the tool from Microsoft’s website, run it, and choose “Upgrade this PC now”. This can repair corrupted system files that may be hiding the Bluetooth adapter.
Check the Device Manager for hidden devices under “Non-Plug and Play Drivers” (View > Show hidden devices). Look for any Bluetooth-related entries with a yellow mark. Right-click and update or uninstall them.
If you have a USB Bluetooth dongle, plug it in. If it appears in Device Manager, the issue is with your internal adapter’s hardware. If it doesn’t appear, the USB port or the dongle itself may be faulty.
Try booting into Safe Mode. If Bluetooth appears in Safe Mode, a third-party driver or software is interfering. Use msconfig to disable startup items and services to isolate the culprit.

Frequently Asked Questions

Why is Bluetooth missing from Device Manager entirely?

This usually means Windows doesn’t detect the hardware. It could be disabled in BIOS, the driver is corrupted, or the adapter is physically disconnected or failed.

Can I add Bluetooth to a PC that doesn’t have it?

Yes, you can use a USB Bluetooth dongle. Plug it in, and Windows will install drivers automatically. It will appear in Device Manager under Bluetooth.

How do I know if my PC has Bluetooth hardware?

Look for a Bluetooth icon in the system tray or check Device Manager for a Bluetooth section. You can also check your PC’s specifications online or in the manual.

What if the Bluetooth driver fails to install?

Try downloading the driver from your PC manufacturer’s website using another device, then transfer it via USB. If that fails, run the Windows Update catalog to find a compatible driver.

Does reinstalling Windows fix Bluetooth issues?

Often yes, because it resets all drivers and system files. A full reset or in-place upgrade can resolve persistent driver conflicts.

Is it safe to use a third-party Bluetooth driver?

Generally no. Third-party drivers can be unstable or contain malware. Stick to the manufacturer’s driver or the one provided by Windows Update.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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