I guess your problem may be with the drivers. Do the following first.
Right click on my computer and go to device manager. Look for Bluetooth radios and see what is the wireless bluetooth properties. In the advanced tab under properties see the manufacturer id and HCL version. This information will be used to look for the manufacturer of your bluetooth radio. Most likely it will be intel (manf id is 2 for intel). Then you go and download the drivers from intel and install them.
Then try pairing your earphones again and see if it helps. Most likely your issue will be resolved.