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Windows 7: "Intel USB 3.0 eXtensible Host Cont. Driver" Crash during installation

29 Mar 2014   #1

Windows 7 Pro x64
"Intel USB 3.0 eXtensible Host Cont. Driver" Crash during installation

Iím downgrading a ASUS N550LF-CN100H from windows 8 to windows 7 Pro x64.

But when I try to install the driver "Intel(R) USB 3.0 eXtensible Host Controller Driver" the system crash.

I have installed the latest version of the BIOS (2.12) and changed some settings (for W7).
- Boot -> Lunch CSM = Enabled
- Security -> Secure Boot Control= Disabled

I have tried with the driver coming from the Intel site and with "Driver Genius" (same driver).
Do you have any advice to solve this issue because Asus doesnít give any support for downgrade ?


My System SpecsSystem Spec
29 Mar 2014   #2

Windows 7 Home Premium, 64

Did you try the support section of Asus to download drivers. See this link and change to your model
ASUSTeK Computer Inc. -Support- Drivers and Download X550LA
My System SpecsSystem Spec
29 Mar 2014   #3

Windows 7 Pro x64

Yes same problem. It's the version 2.50.19 (win 7). For the model N550LF windows 7 is not available
My System SpecsSystem Spec

29 Mar 2014   #4

windows 7 home 64bit

Hi there ... I would check the Asus Website again as they do have Windows 7 Drivers ...
My System SpecsSystem Spec
18 Jun 2014   #5

Windows 7 64bit

Did you ever find a solution for this problem? Currently running into the same issue with the same setup.
My System SpecsSystem Spec
22 Jun 2014   #6

Win 7 pro x64

I am having the same issues. I've tried the drivers from Asus' site, and the ones from Intel's site. (They're the same.) It doesn't matter if I run the installer or tell device manger where to get the drivers, it always hangs while doing an install. I found this interesting tidbit on the Intel forums here: but I have no way to unlock my laptop's bios. This may help someone.
My System SpecsSystem Spec
27 Feb 2015   #7

Win7 64bit
My Solution

I have the same issue. Thanks to the information provided by j8048188

I can unlock the bios option and disable the XHCI Pre-Boot Mode. Then I can use my usb devices.

On my ASUS Q550LF The detailed approach is as follows:
Press F2 at when starting the computer to enter BIOS
Under "Advanced" label choose "USB Configuration" then disable the option "XHCI Pre-Boot Mode"
Return to the main BIOS
Save the changes and exit

Hope this works for you.
My System SpecsSystem Spec
28 Feb 2015   #8

windows 7 home 64bit

Hi ... Welcome to Seven Forums ... And many thanks for Posting your Solution
My System SpecsSystem Spec

 "Intel USB 3.0 eXtensible Host Cont. Driver" Crash during installation

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