How to uninstall Widcomm drivers
The Widcomm drivers should have a normal add/remove option in the control panel, regardless of who supplied them. If your installation has become damaged, and for some reason you cannot use the normal uninstallation method, the details below should help you remove the Widcomm drivers from your system.
The procedure
- Make a back-up of your system registry
- Run "regsvr32 -u BtNeighborhood.dll"
- Run "btstackserver.exe /unregserver"
- Run regedit and delete the WIDCOMM key from HKEY_CURRENT_USER and HKEY_LOCAL_MACHINE
- Delete "bt*.dll", "btcpl.cpl", and "bt*.manifest" from your system folder (this varies depending on which version of Windows you are using)

