
Quote: Originally Posted by
Kika
It's a mobile phone bluetooth connection, it does not have drive letter nor it is showing at device manager

I do not know the answer but I know what I would try.
1. Control Panel | type Blue in the search box | select Devices and Printers
now see if you can delete the entry from there.
2. Another approach, WIN | type DEVMGMT.MSC | Enter
Locate your bluetooth device there. Rt-click on entry and select Uninstall.