I tried once to pair unsuccessfully my Iphone by BTH on my HP Compaq8710p and ever since then I get 2 unknown peripheral devices in Device Manager that I cannot get rid off. This problem is described in kb/811805 but I cannot delete the BTH keys in regedit (permission denied). I am the admin and tried to change permission for that key but it won't allow that either. The only way not to show the bad devices is by disabling the BTH enumerator.. Please advise Thanks Frank