I have used the BT 900 with HH5 and now HH6 with no issues & also using Windows 10 normal drivers so must be lucky not to have the issues mentioned on here.
Yes Windows 10 is set to allow Auto updates, just to confirm my Wireless Adapter is the BT 600 and not the BT 900. I have had no disconnections whatsoever since I turned off the Power Management option yesterday so I'm pleased it's running OK now and hope it helps anyone else who may wish to try this fix.
Just wondering, has anyone tried my 'not plugging in the dongle until a couple of minutes after boot up' with any success? It's still working for me after about three days.