If Bluetooth is integrated in your computer, or if you use a USB Bluetooth transmitter, upgrade to the Bluetooth driver for Windows 7.
Windows 7 does not include native support for the A2DP Bluetooth profile, which is necessary for Bluetooth stereo audio streaming. Even if Bluetooth stereo is enabled on a previous version of Windows, it might not work after you upgrade to Windows 7.
Contact the manufacturer of your computer for advice.
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