Windows Update KB2756872 kills USB ports

Anonymous

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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Anonymous

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:

During POST, open up BIOS
Enter advanced mode
Go to "Advanced -> "USB Configuration"
Set both "USB Legacy Support" and "USB3.0 Legacy Support" to Disabled
Save and exit BIOS
Log on to Windows
Go to "Control Panel" -> "Windows Update"
Remove KB275872
Reboot and open BIOS again during POST
Set both "USB Legacy Support" and "USB3.0 Legacy Support" to Enabled
Save and exit BIOS
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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Anonymous

I have an asus p8p67. In my case, I can solve the problem by accessing the BIOS and telling the computer to boot from the "windows boot manager" instead of my main hard drive.

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Anonymous

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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77 additional answers

Anonymous

2012-10-27T18:37:59+00:00

Hi David,

Thank you for visiting Microsoft Community.

From your problem description I understand that each time you install KB2756872 the USB ports stop working.

Please don’t worry; I’ll try my best to help you.

Method 1: Open the Windows Update troubleshooter:

a. Type "control Panel" on the start screen

b. Open "Troubleshooter"

c. Select "fix problems with Windows updates"

Method 2: Update the chipset drivers and check.

Please post back if you are still experiencing the issue. I will be glad to provide you with additional options available that you can utilize to get this issue resolved
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Anonymous

2012-10-28T05:01:59+00:00

Thanks Sandeep,

The Troubleshooter found a problem and fixed it. I updated the chipset drivers to the latest ones on the ASUS site (for Windows 8). I created a restore point ( ... just in case ...) and ran Windows Update.

No luck. After the update, the USB ports still didn't respond. Unfortunately there is nothing I can do after the Windows Update because the mouse and keyboard don't work. The only recourse left to me is to interrupt the bootup process and a system recovery from the last restore point.

Any suggestions would be greatly appreciated.

Michael (yes ... it's Michael, not David)
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