I also had this problem.
I had done upgrade from windows 7 to windows 10. But I had this problem and other. I recovery my windows to old image backup windows 7, I had made this image before accept run upgrade and after download files windows 10 by MediaCreationTool.exe.
- Dec 16, 2016 Than, I go to my dell DVD drivers and open file of The first version Bluetooth driver for my PC (my driver is 'R226746'), and run this file. After finishing, I go to C:delldriversR246Win32 and install 'Inst.exe'. Now I haven't any problem.
- Nov 19, 2008 This package contains the files needed for installing the Dell Latitude E4300 365 Bluetooth/WLAN driver. If it has been installed, updating (overwrite-installing) may fix problems, add new functions, or expand existing ones.
- Drivers & software for Dell Latitude E4300 (Latitude): Application, Audio, BIOS, Backup and Recovery, Control Point, Modem/Communications, Chipset, Drivers for OS.
- May be unrelated, if you are using a wireless keyboard or for that matter any extraneous USB dongles support Bluetooth / wireless devices (keyboards, mice, network adapters, you may want to disconnect them and stick with the built in keyboard (which hopefully doesn't require its' own proprietary driver) or else perhaps a wired keyboard (USB) connected to a USB port on the laptop.
Feb 16, 2016 May be unrelated, if you are using a wireless keyboard or for that matter any extraneous USB dongles support Bluetooth / wireless devices (keyboards, mice, network adapters, you may want to disconnect them and stick with the built in keyboard (which hopefully doesn't require its' own proprietary driver) or else perhaps a wired keyboard (USB) connected to a USB port on the laptop.
after recovery, I open drive 'C' windows and copy folders '$Windows.~BT', '$Windows.~WS' and 'ESD' in other drive. Than I go to 'C:delldriversR226746R226746Win32svcpack' and run 'SetupBluetoothDFU.exe' and into windows of this program, I select 'LS.dfu' for reinstallation my firmware of card Bluetooth.
Dell Latitude E4300 Bluetooth Drivers Windows 7
Than I take image backup of my windows into other drive. I restart my PC and run DVD windows 10 for install again this windows and delete all file to drive windows of my PC and install windows 10 into the same drive. After finishing, I go to my windows and send folders '$Windows.~BT', '$Windows.~WS' and 'ESD' to same my drive windows.
Than I go to 'ESD' and I opened folder 'Windows' and run 'setup.exe'. I accept upgrade and don't accept add app and personal files for install and copy into new upgrade windows. (this file upgrade windows after upgrade is in $Windows.~BT and $Windows.~WS is hidden and stay to a month.) Now, my windows haven't it problems. My windows was active and accept for Microsoft.
Dell E4300 Drivers Windows 7
Than, I go to my dell DVD drivers and open file of The first version Bluetooth driver for my PC (my driver is 'R226746'), and run this file. After finishing, I go to C:delldriversR226746R226746Win32 and install 'Inst.exe'. Now I haven't any problem.