Windows 10: Bluetooth dongle Driver Install error occurs - after windows recovery

Hi, guys.
I am about to have a headache because of this error.
I have been so many searching, asking, trying in vain.
I just found this forum full with nice discussion and many problems solved,
and am posting new thread with hope.
Please understand if some expressions look odd or rude,
as English is not my mother tung and I wouldn't mean that.

Alright.
I have a bluetooth dongle. (Chipset seems CSR8510 A10)
And it worked very fine with basic drivers which is included in Windows 10.
I just plugged the dongle in my computer, and windows automatically searched and installed drivers,
and Bluetooth icon was on the system tray.
I remember that the names of drivers are Generic Bluetooth Adaptor or Radio.

One day, somehow my windows went bad - couldn't be booted.
So I took windows recovery to some past point.
After that, when I plugged the dongle in my computer,
windows tried to install drivers and failed with error message 'cannot find the file specified'.

I tried to install so many kinds of other third party drivers,
sfc/scannow, DISM-restorehealth... etc. in vain.

During that fail-full trial, I realized some structure of drivers.
C:\Windows\INF\bth.inf - this file seems the source install codes of bluetooth drivers.
If you just open this file with notepad, you can find so many codes.
It says copy files, add registry, and more things I cannot understand.

And if I right-click this file and select 'install',
error message 'cannot find the file specified' showed up as well.
But if I do the same thing in another PC with windows 10, no error and it works well.
With that PC, the dongle and drivers are installed well.
Then my guessing conclusion - direct install of bth.inf runs some procedure and seeks files 'specified',
and there might be some files missing.

If someone could understands the codes in bth.inf and teach me it seeks which files from where,
I might check those files and that will be the first step of solving.
This idea might be wrong, I'm just trying

Also, any suggestion, opinion, case experienced and every comments will be very thankful.

:)

 

Bluetooth missing from Device Settings (Win 10 PC)

Please uninstall the driver of your Bluetooth dongle through the
Device Manager and reinstall it using the driver software that can be downloaded from the manufacturer's website.
To do this, follow these steps:

• Insert the Bluetooth dongle.
• To uninstall the Bluetooth dongle driver, follow the steps found on this
  link.
• After uninstalling the Bluetooth dongle driver, remove the Bluetooth dongle.
• Go to the manufacturer's website of the Bluetooth dongle and download the latest driver software
• Insert the Bluetooth dongle and if it's installing the driver automatically, cancel it.
• Use the driver that you downloaded.
• Restart the computer.

Let us know how it goes.

 

Bluetooth Error, Windows 10 update

I am using a Kensington USB Bluetooth dongle (Bluetooth 4.0): Kensington - Products - Connectivity - USB Hubs & Adapters - Bluetooth® 4.0 USB Adapter, Acer laptop with Windows 10, Microsoft Bluetooth mouse and keyboard. With every Windows update there is a driver error,
so I have to uninstall and re-install the Bluetooth dongle, and then re-pair the keyboard and mouse. How do I stop Windows update from causing the driver error? Or, is there another way to fix this?