Hi all.
Windows 10 Home 10.0.16299 64-bit
CPU: Intel i5-2400 3.1GHz
Motherboard: Asus P8 H67-M Pro (B3 revision)
BIOS: American Megatrends 0806 Feb 11
RAM: 16Gb
Bluetooth USB dongle: Cambridge Silicon Radio Bluetooth 4.0
I recently bought and tried to connect a pair of (Edifier W800BT) Bluetooth headphones to my Windows 10 desktop.
The headphones were detected by the computer, but, when I tried to <Add device>, it repeatedly failed.
I had another set of (Logitech) Bluetooth headphones that were already paired. I tried them, and they still worked fine.
I then unpaired the Logitech headphones. Made no difference (to my Edifier connection problem), but I discovered I could no longer pair the Logitechs either. In fact, I tried several other Bluetooth devices (phone, speaker) with the same result – the computer would discover/recognize the devices, but would be unable to add (pair with) them.
I checked (in Device Manager) for the latest Bluetooth drivers, and made sure Bluetooth Support Service and Bluetooth Handsfree Service were set to <Automatic>. Still no luck.
I don't use the drivers (on the disc) that came with the Bluetooth dongle as they cause the Windows 10 Bluetooth toggle switch to disappear altogether.
I also tried the Bluetooth dongle on a friend's Windows 10 desktop and it immediately paired with the new (Edifier) headphones.
Any advice would be greatly appreciated.

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