Can not add bluetooth device in Windows 10

Question

Hello guys, I am using TP Link T2UB Nano adapter v1 in my desktop with Windows 10 Iot LTSC installed with below specs

Processor Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz 3.09 GHz
Installed RAM 8.00 GB (7.90 GB usable)
Edition Windows 10 IoT Enterprise LTSC
Version 21H2
Installed on ‎08-‎10-‎2024
OS build 19044.4894

Things I have tried

1. Uninstalling and installing bluetooth drivers
2. Troubleshooting bluetooth Open Settings >> Update and Security >> Troubleshoot >> click Bluetooth >> click Run the troubleshooter
3. Clean installing windows
4. Running commands sfc /scannow and DISM.exe /Online /Cleanup-image /Restorehealth

As you can see, there is no option coming to close the dialog and the paired devices are not coming in list too. I have clean installed the windows 3 times.

Kindly help me to rectify the problem? I can not unpair the device, as there is no paired device is coming in the list


*** Moved from Windows / Windows 10 / Devices and drivers ***

Answer 1

Hello ashish1989,

thank you for posting on the Microsoft Community Forums.

It looks like you've already tried several troubleshooting steps to resolve your Bluetooth issue on your Windows 10 IoT Enterprise LTSC system, including reinstalling drivers, running troubleshooters, performing system scans, and clean installing Windows. Given that the problem persists, let's try a few additional steps:

1. Remove Bluetooth Device via Device Manager:
   • Open Device Manager by right-clicking the Start button and selecting "Device Manager."
   • Expand the "Bluetooth" category.
   • Right-click on your Bluetooth device (e.g., TP-Link T2UB Nano Adapter) and select "Uninstall device."
   • Also, check for any existing paired devices under "Bluetooth" and uninstall them if found.
   • Restart your computer and let Windows reinstall the Bluetooth driver.
2. Clear Bluetooth Cache: Clearing the Bluetooth cache can sometimes resolve pairing issues:
   • Press Win + R, type %windir%\inf, and press Enter.
   • Locate the files named BTH.INF and BTH.PNF.
   • Cut and paste them to a safe location (e.g., your desktop) as a backup.
   • Restart your computer and try pairing the device again.
3. Check Bluetooth Services:
   • Press Win + R, type services.msc, and press Enter.
   • Ensure that the following services are running and set to Automatic:
     • Bluetooth Support Service
     • Bluetooth Audio Gateway Service
     • Bluetooth User Support Service
   • If any of these services are not started, right-click on the service and click "Start." If they are not set to Automatic, double-click the service, set the Startup type to Automatic, and then start the service.
4. Use the Bluetooth Command Line Tool (Bthprops.cpl):
   • Press Win + R, type bthprops.cpl, and press Enter.
   • This will open the Bluetooth settings directly. From here, try to remove the paired device and pair it again.
5. Update TP-Link Bluetooth Adapter Driver:
   • Visit the TP-Link website and download the latest driver for the T2UB Nano adapter.
   • Install the latest driver manually.
6. Ensure your Windows 10 IoT Enterprise LTSC is fully updated.
7. Try Different USB Ports: Plug the TP-Link Bluetooth adapter into a different USB port, preferably a USB 2.0 port if available.
8. Ensure there are no other devices causing interference with the Bluetooth signal.

If none of these steps work, you might consider using a different Bluetooth adapter to determine if the issue is with the TP-Link adapter itself.

Hope it helps.

Kind regards,

Lei

Answer 2

1. Remove Bluetooth Device via Device Manager:

• Open Device Manager by right-clicking the Start button and selecting "Device Manager."
• Expand the "Bluetooth" category.
• Right-click on your Bluetooth device (e.g., TP-Link T2UB Nano Adapter) and select "Uninstall device."
• Also, check for any existing paired devices under "Bluetooth" and uninstall them if found.
• Restart your computer and let Windows reinstall the Bluetooth driver.

Done this many times, no use

3. Check Bluetooth Services:

• Press Win + R, type services.msc, and press Enter.
• Ensure that the following services are running and set to Automatic:
• Bluetooth Support Service
• Bluetooth Audio Gateway Service
• Bluetooth User Support Service
• If any of these services are not started, right-click on the service and click "Start." If they are not set to Automatic, double-click the service, set the Startup type to Automatic, and then start the service.

Can not find - Bluetooth User Support Service in Services list

4. Use the Bluetooth Command Line Tool (Bthprops.cpl):

• Press Win + R, type bthprops.cpl, and press Enter.
• This will open the Bluetooth settings directly. From here, try to remove the paired device and pair it again.

This is my main problem, device is pairing but dialog is not closing

5. Update TP-Link Bluetooth Adapter Driver:

• Visit the TP-Link website and download the latest driver for the T2UB Nano adapter.
• Install the latest driver manually.

6. Ensure your Windows 10 IoT Enterprise LTSC is fully updated.
7. Try Different USB Ports: Plug the TP-Link Bluetooth adapter into a different USB port, preferably a USB 2.0 port if available.
8. Ensure there are no other devices causing interference with the Bluetooth signal.

Checked these too many times

If none of these steps work, you might consider using a different Bluetooth adapter to determine if the issue is with the TP-Link adapter itself.

I am also thinking, it is the adapter driver problem only, nothing else, it is not establishing serial port connection automatically.