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Now might be a good time for you to run a System File Check. You should have the bth.inf file in a basic Windows 8 install.
Open and Administrative command prompt, and type SFC /scannow and let it finish. Let us know what it says.
Junior Member
Thread Starter 
Originally Posted by Saltgrass
as i said earlier, only the generic bluetooth adapter is listed and NOT the ms bluetooth emulator or anything else ( ie my case does NOT match with the attached thumbnail ).
however, when i am uninstalling the generic bluetooth adapter ( ie uninstalling the device ) and then scanning for hardware changes ( from the right-click pop-up menu ) ms bluetooth emulator appears for a fraction of a second ( under the generic bluetooth adapter ) and then disappears - and only the generic bluetooth adapter remain listed. [ this is past behavior ]
ehow - how to restore bluetooth?
after reading the article i searched for "bth.inf.old" or "bth.bak". neither is present. only bth ( without the inf extension ) and bth.pnf is present. i changed bth to bth.inf.
then i uninstalled generic bluetooth adapter ( device ) and scanned for hardware changes. now it is showing as unknown device ( listed under other devices ) with error code 28. ( generic bluetooth adapter is not showing anymore ) when i am clicking the property of the unknown device it is showing as broadcom bcm2070...
The drivers for this device are not installed. (Code 28)
The installation failed because a function driver was not specified for this device instance.
To find a driver for this device, click Update Driver.
when i am clicking update driver windows automatically searches online, downloads and tries to install, and finally a message appears :
the driver installation file for this device is missing a necessary entry. this may be the inf file was written for win 95 or later.
btw, driver whiz and bluetoothdriverinstaller.exe could not be run as they have compatibility issues.
Senior Member
Now might be a good time for you to run a System File Check. You should have the bth.inf file in a basic Windows 8 install.
Open and Administrative command prompt, and type SFC /scannow and let it finish. Let us know what it says.
Junior Member
Thread Starter windows resource protection did not find any integrity violations.
Senior Member
I really do not know what would be the best course of action. Your system seems to be missing some Windows 8 system files and the System File Check will not replace them. Of course, if it was able to fix the problem, it would not give you any error indications.
Since it appears you cannot get the Microsoft Bluetooth Enumerator to work you probably need to work on that. I do not know if the third party software drivers you are installing are involved, but try just removing those to see if Windows will set things up. If you run msinfo32.exe, it will give you a list of drivers in the Software Environment - System Drivers section. Check if bthenum is listed and what it says about it.
In the registry, you should have an entry with the following key.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\BthEnum
If it appears you will not be able to solve the problem, it might be about time for you to do some type of system recovery, such as a Refresh operation in Windows 8. I am not that familiar with what each one does, but you will have to make that choice.
Junior Member
Thread Starter the following is NOT present in the registry.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\BthEnum
bthenum ( bluetooth enumerator ), bthhfenum ( bt handsfree audio and call control enumerator ), bthhfhid ( bt handsfree call control hid ), bthmodem ( bt serial communication ), bthpan ( bt device - personal area network ), bthport ( bt port ), bthusb ( bt radio usb ), btwavdt ( bt avdt service ), bthavrcptg ( bt audio / video remote control hid ) - they all are STOPPED. ( started : no & start mode : manual ).
fyi, after running services.msc
bluetooth radio control service ( turns bluetooth radio on and off based on user request ) - RUNNING ( startup type : auto )
bluetooth service ( handles installation and removal of bluetooth devices ) - RUNNING ( startup type : auto )
bluetooth support service ( discovery and association of remote bluetooth devices ) - RUNNING ( startup type : auto - trigger start )
Senior Member
I suppose we need to go back to see why you did not find the bth.inf file in the Window\inf directory. That is the setup file for the Microsoft stuff. You said you saw a .pnf file, and you should have one of those also. The file should be about 65K and say setup information. The .pnf version is 66K.
If you have a file that is listed as bth.inf, you might try right clicking and select "restore to previous versions", if you have that option. Then try allowing the device to be rediscovered or use the Disk Management to scan for new hardware.
I got a USB Bluetooth adapter at Best Buy yesterday for around $20 (Rocketfish). If you can't get your system working, that might be an alternative, at least for testing.
Senior Member
I just had a bad experience with a TV Tuner card and its drivers. What I learned is that there may be a situation where a bios reset to defaults could help. Newer bios chips/firmware seem to keep drivers for certain devices. If you are having a problem with one, try resetting the bios to its defaults then go and reset what you need to.
It cleared up a situation where I was getting a yellow exclamation on a multimedia device even though I knew I had the correct drivers.
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