Windows Update KB2756872 kills USB ports

Hi.  I've just gone through the update to Windows 8 Pro.  I'm having a big problem with Update KB2756872.  Whenever I perform the update all my USB ports cease to work.  My motherboard is an I have an ASUS P8Z68-V Pro/Gen3.  I've updated to the latest BIOS and drivers for everything I have (except the X-Fi Titanium, which doesn't have up to date drivers).

I've gone through an exhaustive process of elimination to try and find if it's a driver problem, and it doesn't seem to be.  The problem is definitely linked to KB2756872.  Each time it installs , the USB ports stop working.  I have to force a restore to the previous restore point to get everything working again (I'm getting good at that now).

Please HELP!!!!!!!!
 

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Last updated April 25, 2019 Views 42,819 Applies to:
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Answer
I fixed this dead USB ports issue on my friends PC running Win8 Pro x64 on Asus P8Z68-V Pro (Intel Z68) by going thru these following steps:

1. During POST, open up BIOS
2. Enter advanced mode
3. Go to "Advanced -> "USB Configuration"
4. Set both "USB Legacy Support" and "USB3.0 Legacy Support" to Disabled
5. Save and exit BIOS
6. Log on to Windows
7. Go to "Control Panel" -> "Windows Update"
8. Remove KB275872
9. Reboot and open BIOS again during POST
10. Set both "USB Legacy Support" and "USB3.0 Legacy Support" to Enabled
11. Save and exit BIOS
12. After logon go to "Control Panel" -> "Windows Update" and hide KB275872 which now should be in "Important updates". Keep it hidden and uninstalled until it's confirmed this issue with the update has been fixed. 

These instructions might help on other motherboards/chipsets/BIOS versions aswell.

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Looks like I've had the same problem and managed to resolve it.  These were my steps:

* Open Device Manager
* Expand System Devices
* Right-mouse click on the "USB Host Controller" (or device in that section with similar name).
* Select "Update Driver Software..."
* Select "Search automatically for updated driver software".

The item was then redetected as a "USB xHCI Compliant Host Controller", disappeared from the "System Devices" list and reappeared in the "Universal Serial Bus controllers" section as "Intel USB 3.0 eXtensible Host Controller - 0100 (Microsoft)" and the USB devices immediately started functioning.

Initially I tried deleting/re-adding the devices under "Universal Serial Bus controllers" to no avail, and didn't know there was one up in "System Devices".

Hope this helps some people.

Alex

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