- EXtensible Host Controller Interface (xHCI) is a computer interface specification that defines a register-level description of a host controller for Universal Serial Bus (USB), which is capable of interfacing with USB 1.x, 2.0, and 3.x compatible devices. The specification is also referred to as the USB 3.0 host controller specification.
- In this post, you will learn how to fix the ASMedia USB 3.0 eXtensible Host Controller driver issues. Follow the instructions. You can fix the driver issues even your USB keyboard.
The Intel site here says that Windows 8, Windows 8.1, and Windows 10 have a native in-box USB 3.0 driver, and that Intel is not releasing a specific Intel USB 3.0 eXtensible Host Controller Driver for Windows 8, 8.1, or 10.
What Is Intel(r) Usb 3.0 Extensible Host Controller Driver
Important: You should not click Uninstall. If this driver is uninstalled, all external keyboards, mice, and trackpads connected to a USB 3 port become inoperative in Windows 8.
For OS X Mountain Lion v10.8.3 or later
- Click the Back button.
- Cancel the upgrade.
- Open Boot Camp Assistant in the Utilities folder (in the Finder, choose Go > Utilities).
- Use Boot Camp Assistant to download the latest Windows Support Software from Apple.
- Restart your Mac and start up in Windows 7.
- Install the support software in Windows 7, then try the Windows 8 upgrade again.
For OS X Lion or earlier
What Is Extensible Host Controller Driver Windows 10
- Click the Back button.
- Cancel the upgrade.
- Download and install the Windows Support Software here.
Learn more
Uninstalling this driver will not disable the keyboard and trackpad on a MacBook, MacBook Air, or MacBook Pro. However, external USB devices cannot be used if the driver is Uninstalled.
Asmedia Extensible Host Controller Driver
If you already clicked Uninstall and your external keyboard, mouse, or trackpad is inoperative in Windows 8, you'll have to delete your Windows partition using the Boot Camp Assistant, and start over. If you are doing an upgrade install, you will have to install Windows 7, install the Boot Camp Support Software, then upgrade to Windows 8. For more information on Windows 8 installation, seethe Boot Camp Installation & Setup Guide.