1st Method

To control how your computer pairs with Bluetooth enabled devices

You can set several options for how your computer finds (or is found by) Bluetooth enabled devices.

1. Open Control Panel by clicking the Start button, and then clicking Control Panel.

2. In the Control Panel search box, type Bluetooth, and then click Change Bluetooth settings.

3. In the Bluetooth Settings dialog box, click the Options tab and do any of the following:

   To make your computer discoverable to Bluetooth enabled devices, select the check box for Allow Bluetooth devices to find this computer.

When a Bluetooth enabled computer is in discovery mode, it broadcasts a wireless signal that allows it to be detected by other computers or devices. This is called pairing mode. If you check this box, your computer will still be able to detect Bluetooth enabled devices that are in discovery mode, but they will not be able to detect your computer.

To allow you to add Bluetooth enabled devices to your computer, select the check box for Allow Bluetooth devices to connect to this computer.

2nd Method

if you are facing this problem with most of your connected bluetooth devices and you are experiencing this problem after an update.

Roll Back to a Previous Driver

1-Click Start

2-type Device Manager, and press Enter.

3-Find and double-click the bluetooth driver of your PC

4-Double Click the bluetooth Driver tab.

5-Click the Roll Back Driver button.

6-A dialog box will ask you to confirm your decision to roll back to a previous driver. Click Yes to begin the roll-back process.

if there is no previous update

Uninstall the bluetooth driver

1- Click Start

2- type Device Manager, and press Enter.

3- Right-click the device, and click Uninstall.

4- Windows will prompt you to confirm the device’s removal. Click OK to remove the driver.

5- After the uninstallation is complete, reboot your computer.

6- If the driver wasn't installed upon restarting , go for the pc manufacturer site and download the Bluetooth driver.

Hope it works:)