Now when I view my drivers in the Device Manager (making sure to reveal hidden devices) there are no bluetooth drivers at all I uninstalled them and restarted Windows, but it did not reinstall those drivers. Navigating to View > Show hidden devices revealed them. I navigated to the device manager, but found that all of my bluetooth drivers had been hidden.

Multiple times it was suggested on the windows forums to simply uninstall all bluetooth drivers and restart Windows, and that this would prompt Windows to correctly reinstall the drivers. It is now started and configured correctly. I had to manually reconfigure my Bluetooth Support service to automatically start up with Windows, since it had been completely disabled (not sure how it got disabled).

It thinks that 'Bluetooth is not available on this device'. I simply ran the bluetooth troubleshooter. I have booted into my BIOS and confirmed that bluetooth hardware functionality is enabled. I went to go toggle bluetooth back on and noticed that the toggle switch is missing. I can't be sure exactly what caused this, but at some point recently, bluetooth stopped working. It has Bluetooth 4.1 baked into it, and it was working great until recently. Rebooting did not help.I have an Asus ROG Maximus IX Code motherboard. Try as I might, I could not get the Broadcomm device to come back. Restarting ordinarily restores missing components, but in this case it did not. After doing that and restarting, I had not gotten a connection, but the third subdevice, the Broadcomm one, had vanished, I had also lost several other devices that had shown up previously. In my flailing around for a solution to my problem, I tried a third alternative which apparently exists only for the Broadcomm device: deleting the driver. Most of the suggested remedies for the did-not-connect problem require disabling or uninstalling a one of these devices and restarting. In Device Manager, if you click on the Bluetooth device, you're supposed to see five subdevices: Bluetooth Device, Intel Wireless, Broadcomm, Microsoft Bluetooth Enumerator. l've accidentally lost one of the Bluetooth drivers while trying to connect to my headphones, There are many posts about the 'Bluetooth failed to connect' problem and many suggested remedies, most of which require uninstalling or deactivating a Bluetooth device. Restoring a missing driver (Bluetooth in my case)

Reinstall windows 10 bluetooth driver