Can't turn on Bluetooth, Bluetooth adapter disappeared both in Device Manager and the Hidden Devices in Device Manager

Yea pretty much Bikematt, myself I had all the above issues however I always DID find it when I clicked on HIDDEN DEVICES in Device Manager but of course it was grayed out (you could right click on it and get a context menu but clicking enable wouldn't work). 

Regardless I bought a 15 dollar Amazon BT5 Bluetooth adapter as I needed BT for quite a few things I use. 

In the interim I was disgruntled like you with my NEW build that I had picked exclusively to have BT5 and Wifi6 built on the motherboard (my board being Gigabyte Aorus mini iTX B550i V1.0) and flashed the BIOS to the latest version after trying the power plug removal trick 3 times and after a cold shutdown it would again disappear. 

  Anyways I reflashed back to an earlier BIOS F2 and tried the power plug trick again and now since I did that which is going on a good month it's never had another issue! So I bought that extra BT adapter for nothing but I'll keep it just as a backup should it fail but I'm confident now as my PC has been unplugged a few times and it's always working great! 

So like you I think I'm still blaming Gigabyte for the glitch. 

So B550I AORUS PR

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Possible Gigabyte's fault .. but I recall seeing similar issues with ASUS motherboards. Perhaps they get their BIOS from the same company (Award, AMI etc). Furthermore, the comments in the last Intel driver release seem suspicious (even though it didn't fix the issue). Still, it is very frustrating that it doesn't seem to be fixed or that anyone is paying attention!

PS: I ended up buying a cheap USB bluetooth dongle as I became sick of having to shutdown, power off etc. Quality is not as good but at least it works consistently for now until Gigabyte / Intel fix the real issue.

If it means anything here's what is installed for drivers on mine since. 

Sorry for your dilemma as I can't stand buying something then having to take up a USB port when it's supposed to be included onboard and the reason you bought the device is because it's included in the first place.

I tried removing and reinstalling new bluetooth drivers which are available on Intel.com to no avail.  try AMD if you have an AMD CPU. I think the Bluetooth may be part of the CPU.  I can get a new Bluetooth driver from iintel. The same for updating the BIOS. I am guessing Gigabyte may be having severe COV-19 issues. They have not answered their phone or returned my emails.

Hi all,

My PC has been working fine before, but decided to act up today. Out of a sudden, my bluetooth is turned off, and there is no option to turn it back on. I tried reinstalling the drivers, remove, and repair, but it did not help. 

The Bluetooth Adapter is still not showing up in my Device Manager, even when I select to show Hidden Devices.

Now I am stuck, unable to connect to my speakers, controllers, and keyboard. Gotta quickly find a wired keyboard just to type this. On a side note, WiFi is working fine too.

Mainboard is a Gigabyte Aorus B550i, installed both bluetooth drivers from Gigabyte and from Intel, didn't help. Bluetooth adapter is an Intel Wi-Fi 6 AX200.

Please help :(

I have the exact same issue with the exact same motherboard (AUROS B550I Rev 1.0). Everything was working fine last time I used Bluetooth two weeks ago. I reverted my Windows update to around that date and did not fix it. I am currently running Windows 10 Pro 20H2