USB Host controller missing in device manager

Hello,
I've installed WIN 7 64 bit on my laptop; everything worked fine at the beginning; but after a couple of days, after a system update, all of the 4 USB ports stop working
In device manager there is no USB Host controller entry, and I have four device named "Multifunction device" marked in error
Already tried without success:
- update device driver autosearch online
- uninstall device and reboot; the system can't find proper drivers
- reinstall all drivers from HP driver update utility
- reinstall drivers with Intel driver update utility
- reinstall windows (no reformat)
- other driver search utilities
I can rule out an hardware problem because if I boot from CDROM or even usb keys, they work properly; given this fact, if I reformat the disk probably I could fix the problem I guess, but I prefer avoid this extreme solution, I use this laptop for my job and I have lot of customer network and VPN configured.
Thanks

After following the Apple instructions on how to install Boot Camp on my MacBook, I had similar problems. I received the following non-functional driver list:
Bluetooth USB Host Controller
Coprocessor
Ethernet Controller
Network Controller
SM Bus Controller
Video Controller (VGA Compatible)
I tried running the repair feature from the OSX disc, no help. It may be noteworthy that I installed XP Professional SP3 straight off of an install disc, and did not do the following:
Install SP2
Install Boot Camp 2.1
Update to SP3
I am currently downloading Boot Camp 2.1 and hope that it will solve this problem. If anyone can help, please let me know!
Cedric

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You're very welcome.
When you don't see a complete set of drivers for a selected operating system, that means HP doesn't really support that OS.
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How to change get ride off the exclamatory mark on this device:
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Hey there wche5,
I found some information over on this thread may be beneficial to your situation. This controller enables USB over wireless as part of the Intel (WiDi) Wireless Display function. To obtain a fix you will need to go to the Intel Site, and run the Intel Driver Update Utility. This should identify any Intel drivers you have that are out of date, including the WiDi driver.
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I have solved the initial problem.
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Thank you for the prompt reply. I have followed the following steps (from Microsoft support forum) but it didn't solve the problem:
Lets reinstall the USB Controllers.
First, please disconnect all USB devices and then perform the following steps:
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Greetings to all,
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The NIC is defective... As far as Windows is concerned there is no NIC so the driver will not install.
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http://www.amazon.co.uk/dp/B00484IEJS/ref=pd_lpo_sbs_dp_ss_1/276-0277278-5353446?pf_rd_m=A3P5ROKL5A1OLE&pf_rd_s=lpo-top-stripe&pf_rd_r=1MVJEEYPJ5HJ9KP016WC&pf_rd_t=201&pf_rd_p=569136327&pf_rd_i=B006R665RS

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Dear,
I hope that you will be fine. My name is Rana Imran and i am using HP ENVY Ultrabook 6-1106tx with Windows 8.1.
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View Solution.

Hi,
The first suggestion I'd make is to try downloading and reinstalling the switchable graphics driver on the following link as it lists a fix for WIDI.
http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-114949-1&cc=us&dlc=en&lc=en...
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https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=23861&lang=eng&ProdId=3227
Regards,
DP-K
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****Please mark Accept As Solution if it solves your problem****
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Microsoft MVP - Windows Experience

USB host controller

How do you download a hi-speed USB host controller?

The question is better served with another question. You need a system with usb2.0 ports or better.
Does your computer model (unknown, as you did not state it) have USB1 or USB2 ports?
I am a volunteer. I am not an HP employee.
To say THANK YOU, press the "thumbs up symbol" to render a KUDO. Please click Accept as Solution, if your problem is solved. You can render both Solution and KUDO.
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Andy ______________________________________
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