Bi•Fury 5 GH/s USB doesn't show after reboot, have to re-plug (windows 7)

Hey guys,

I have to post it here due to me newbie status (would have liked to post it here: https://bitcointalk.org/index.php?PHPSESSID=0itac7be3frsve3sodagb6pcr0&topic=287590.580) but I can only post here.

So upfront: It is all working under Windows (just had no time to setup a linux machine as I am on holidays and "only" have remote access to that PC. It's all good:
https://dl.dropboxusercontent.com/u/4507060/pictures/BTC/bifury.png

My problems are:
-> When I reboot the machine, the 3x Bi•Fury are NOT showing up any more.
-> The other 5 USB Block Erupters are showing up again
-> All connected to the same USB 3.0 Hub (TeckNet® USB 3.0 10 Port Hub: http://www.amazon.de/dp/B00DCO9YVM/ref=pe_386171_37038021_TE_M3T1_dp_1

1) If I unplug and re-plug the bifurys they show up in the device manager and I can restart bfgminer
2) If I unpower the USB Hub all devices disappear and by repowering the bifurys also show up again

Any ideas why that is? Any solution?
The only backup idea but still don't how to do it if I could "deactivate" the USB hub in the device manager or somewhere else. Tried to randomly deactivate some "hubs" I found but it didn't work.

What to do?

Thanks!