Long shot... does anyone have an Asus ROG Strix X670E-F running Windows 10 LTSC IoT, and have the Bluetooth working? I've just built one and it's all fine except that. Windows' device manager reports "Windows has stopped this device because it has reported problems. (Code 43)" and I've tried everything I can think of with no success. I just wonder if it's LTSC-related... or if I have a faulty board. Still waiting for Asus to answer my support request, but I don't hope for much from them.
Thank you @Tito , I found the MediaTek drivers last night after checking what chipset was used - in fact I found the very same post you linked for me. Installing the MediaTek driver brought my Bluetooth to life The driver from Asus' site (I checked I was in the right place) was the Intel driver, same as my HP uses. That suddenly got into my head in the middle of the night and got me out of bed to investigate. The back of my brain was itching and telling me to check if it was the correct driver. It wasn't. Windows insisted on reinstalling that driver though, saying it was the 'best' one, even after I deleted the driver and uninstalled the device in Device Manager to get it redetected. Oh well, it works now. Panic over.