Hi,
· Which version of operating system is running on your computer?
If you are using windows 7, then refer to the following article:
“Why can’t I connect my Bluetooth device to the computer?”: http://windows.microsoft.com/en-US/windows7/Add-a-Bluetooth-or-other-wireless-or-network-device-frequently-asked-questions
“What to do when a device isn't installed properly”: http://windows.microsoft.com/en-US/windows7/What-to-do-when-a-device-isnt-installed-properly