Loss of functionality for some Intel SMBus Controller devices after you update your system through Windows Update

This article provides a solution to an issue that triggers a loss of functionality for some Intel SMBus Controller devices after you update your system from Windows Update.

Original KB number:   4011290

When you update your computer through Windows Update, some Intel SMBus Controller device drivers are unexpectedly overwritten with Intel Chipset Device software. This causes loss of functionality for some affected Intel SMBus Controller devices. This issue applies to the following Windows operating systems:

• Windows 7
• Windows Server 2008 R2
• Windows 8
• Windows Server 2012
• Windows 8.1
• Windows Server 2012 R2

The existing Intel SMBus Controller device provides the operating system with information about the device and hardware. This enables the operating system to display the correct product name for that piece of hardware in Device Manager.

The Intel Chipset Device software does not install device drivers for the Intel SMBus Controller. This causes a loss of device functionality.

To resolve this issue, use one of the following methods.

To do this, follow these steps:

1. Open Device Manager. To do this, click Start, click Control Panel, and then click Device Manager.
2. Select View, choose Devices by Type, and then expand System Devices.
3. Double-click the SMBus device, and then click the Driver tab.
4. Click Roll Back Driver to restore the SMBus Controller device driver.
5. Restart the system.

To do this, do one of the following:

• For Intel Desktop or Server Boards, download and install Intel Desktop Utilities.
• Contact your computer manufacturer for the SMBus driver appropriate for your system.

To do this, follow these steps:

1. Open Device Manager. To do this, click Start, click Control Panel, and then click Device Manager.
2. Select View, choose Devices by Type, and then expand System Devices.
3. Double-click the Intel chipset device from the list.
4. Click the Driver tab, and then click Update Driver.

To do this, follow these steps:

1. Go to the Intel Download Center.
2. Search for Intel Chipset Device Software (INF Update Utility) or Intel Server Chipset Driver.
3. Follow the installation instructions.

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