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We'll be showing you how to do this in Windows 10. It's particularly handy when you don't have permanent PC speakers or the ones built into your laptop are poor quality.
When you want to hear sound through the computer speakers again, make the computer speakers the default playback device or just disconnect the headphones.Bluetooth speakers are great and you probably connect one to your phone all the time, but how do you pair one with a Windows PC or laptop? We'll show you how with these easy steps. Any sound that is normally heard through the computer speakers should now be heard through the Bluetooth headphones. NOTE: After the Bluetooth audio device is the default playback device, a green checkmark appears next to the device. In the Sound window, click to select Bluetooth Hands-free Audio and then click the Set Default button. In the Hardware and Sound window, click Sound. After the Bluetooth headset connection is successful, click the Close button. You may be prompted to enter a code for your Bluetooth headphones, check the manufacturer's instructions for the code or trying entering: 0000. The name of your Bluetooth headphones may be different. In the Add a device window, click to select Bluetooth headset and then click the Next button. NOTE: Check the manufacturer's instructions for information on how to make the Bluetooth headphones discoverable. Configure your Bluetooth headphones to be discoverable. In the Hardware and Sound window, under Devices and Printers, click Add a device.
In the Control Panel window, click Hardware and Sound. In the Settings screen, click Control Panel. On the Desktop, point to (but do not click) the lower-right or top-right corner of the screen, and then click to select the Settings charm. In the new Windows User Interface (UI) Start screen, click the Desktop tile. Turn on the Bluetooth adapter in the computer.
Check the manufacturer's user guide for information about turning on the Bluetooth adapter. NOTE: If you are not using a VAIO® computer or are using an external Bluetooth adapter, the first step will be different.