Prepare your PC & Install DG45 Driver – Avantree Support

Important Notes:

This product is only compatible with Windows 8.1/10/11 (32/64-bit). It is not designed for use with other operating systems like Mac OS, Linux, car systems, TVs.
For most Windows 8.1/10/11 (32/64-bit) devices, the dongle should work as "plug-and-play" without requiring driver installation.

Step 1. Prepare your computer( Do NOT insert the dongle into your PC USB port yet)

1.1 Go to “Device Manager” (accessed by pressing the Windows key + X). If there is no "Bluetooth", please go to Step 2 directly to install the driver.

1.2 If you see "Bluetooth" on the list, click '>' to open it

1.3 If you have previously connected Bluetooth device on the list, please go to Device Manager > Bluetooth > Right click the Paired device's name> Remove them

If there are too many paired devices and it is hard to remove one by one, you could go to bluetooth setting to turn off Bluetooth first. and then go to the next step 1.4 directly.

1.4 Go back to Device Manager, Disable existing Bluetooth hardware, e.g. "Qualcomm / Intel / Asus / Generic Bluetooth" > right-click and Uninstall or Disable it. (It is better to uninstall the third party driver directly to avoid the software conflict issue)

Note 1.2 If you've successfully disabled a Bluetooth driver, it'll look like this:

Step 2. Restart your computer, then plug the dongle back in.

For some computer, you may need to Download & Install the Driver

Click DG45 Driver and download the driver. If download does not start, please refresh the browser or use another browser.
After downloading, please find the downloaded file 'DG45-Driver-20201010' and extract all the files. (Right click to extract / unzip)

Go to the extracted file folder "RTBlueR_Windows..." and double click “setup.exe” to install.

Follow the instructions to install & plug the adatepr in when prompted

Once successfully installed, you'll find Realtek Bluetooth 5.0 Adapter under Bluetooth in Device Manager

Reboot Your PC the DG45 plugged in. and then you should find the Bluetooth icon in your task bar.