Every now and then, my computer's bluetooth functionality turns off. Usually this fixes itself with a restart of the device, but the issue is persistent enough that it is troublesome.
When the issue arises, the action center does not display the bluetooth button which is usually present:
Now, I have tried various troubleshooters to no avail. Upon probing the device manager, I can see that (when the issue is present), the Bluetooth driver is present as a "hidden device", with its icons sort of greyed-out.
What can be done to fix this?