Connect a Bluetooth device

You can connect various Bluetooth devices, such as keyboard, mouse, phone, speaker etc., to your PC. To do this, you need Bluetooth on your PC. Some PCs, such as laptops and tablets, have built-in Bluetooth. If you are not connected to a computer, you can obtain it by connecting to the computer's USB port. In order to start using Bluetooth, it is necessary to pair the Bluetooth device with the PC.

The detection method differs depending on the device. For specific methods, check the device or see the manufacturer's website.

Please turn on Bluetooth on the PC when the power of the PC is on. To do this, select Action Center> Bluetooth on the task bar.

If the Bluetooth icon is not displayed on the task bar, click the start button, then select Settings> Device> Bluetooth and other devices, then turn on Bluetooth.

When Bluetooth is turned on, the Bluetooth device and the PC will automatically connect the two devices within range of each other.

Turn on Bluetooth and select Add Bluetooth or Other Devices> Bluetooth. Select the device and follow other instructions, then select Done.

The process of establishing a connection between Bluetooth devices is called pairing. Pairing usually involves a certain level of user interaction (such as entering a PIN, comparing numeric values, entering a password, etc.). Bluetooth security is highly dependent on password length and randomness, or PIN code used during device pairing. The length of the PIN code is 1 to 16 octets. In some cases, this value may be hard-coded in the device. There are three security modes: nonsecure, service level security, and link level security. Some services may require authentication or authorization. To ensure data confidentiality, Bluetooth encrypts packets using E0 stream ciphers. For key generation during pairing, the E22 algorithm is used according to the pairing PIN. Other security algorithms based on SAFER + block cipher are also used. We recommend making the device visible only when necessary and deleting the paired device and its link key when not in use.

Many of the services offered via Bluetooth can make it possible to disclose personal data or to control the Bluetooth device at the connection destination. For security reasons, you need to be able to identify specific devices and control which devices can connect to a specific Bluetooth device. At the same time, it is useful that the Bluetooth device can establish a connection (eg within range) without user intervention. In order to resolve this conflict, Bluetooth uses a process called binding and generates a binding through a process called pairing. The pairing process is triggered by the user for the purpose of security (for example, the user explicitly requests to "add a Bluetooth device") or automatically triggered (initial) . These two cases are called special bonds and general bonds.