z97-HD3 USB turns off while booting Win7

[OutOfCheese]

hello Forum,

My Motherboard: GA-Z97-HD3

While booting Win7 the USB2 and USB3 always turns off.  All USB connections are dead.  Win7 (64bit) boots properly but with no Keyboard and no Mouse control. Only thing I can do is press the reset button on the computer.

When booting Win8 this has occurred once or twice, but it mostly boots properly.

Does anyone have an idea what is causing this problem.?

[smoothchat]

Hunt down the intel USB3.0 Extensible Host drivers version 3.0.0.33.  It solved my problems with the USB switching itself off on certain peripherals connected to this MB.