Dual Boot Windows 10/11: How to Change Bluetooth Pairing Key Between Installations?

Introduction

When dealing with multiple Windows 10/11 installations, users might encounter issues with Bluetooth pairing. This problem arises when the same device is paired with different Windows installations, and each installation requires a unique pairing key. In this article, we will discuss how to change the Bluetooth pairing key for a Windows 10/11 installation.

What is a Bluetooth Pairing Key?

A Bluetooth pairing key is a unique code that allows two Bluetooth devices to connect and communicate with each other. This key is essential when pairing a device for the first time or when re-pairing a device after a connection has been lost. In some cases, you might need to change the pairing key for a Windows installation to pair the same device with another Windows installation.

Exporting the Registry File

One way to change the Bluetooth pairing key is by exporting the registry file from the first Windows installation and importing it into the second Windows installation. Here are the steps:

1. Press the Windows key + R to open the Run dialog box, then type "regedit" and press Enter.
2. Navigate to the following key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Bluetooth

3. Locate the subkey that corresponds to the Bluetooth device you want to modify. The name of the subkey will be the device's Bluetooth address, which can be found in the device's properties.
4. Right-click on the subkey, then select "Export." Save the file with a .reg extension.
5. Import the .reg file into the second Windows installation by double-clicking on it.

Limitations of Exporting Registry File

While exporting and importing the registry file is a common solution, it might not work in all cases. Some users have reported that this method does not change the pairing key, and they still need to enter the key manually.

Manually Changing the Pairing Key

Another way to change the Bluetooth pairing key is by manually editing the registry. This method is more complex and requires caution, as incorrect registry modifications can cause system instability or data loss. We strongly recommend creating a system restore point before proceeding.

1. Press the Windows key + R to open the Run dialog box, then type "regedit" and press Enter.
2. Navigate to the following key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Bluetooth

3. Locate the subkey that corresponds to the Bluetooth device you want to modify. The name of the subkey will be the device's Bluetooth address.
4. Right-click on the subkey, then select "New" and "DWORD (32-bit) Value." Name the new value "PairingKey."
5. Double-click on the new value, then set the value data to the desired pairing key. The pairing key is typically a random sequence of numbers and letters, which can be found in the device's documentation or by contacting the device manufacturer.
6. Click "OK" to save the changes, then restart the Bluetooth service by typing "net stop bluetoothadapter" and "net start bluetoothadapter" in the Command Prompt.

Summary

In this article, we discussed how to change the Bluetooth pairing key for a Windows 10/11 installation. We covered two methods: exporting and importing the registry file and manually changing the pairing key in the registry. While exporting and importing the registry file is a simpler method, it might not work in all cases. Manually changing the pairing key is more complex and requires caution, but it guarantees the desired result.