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How to re-install driver if PC could not recognize the Ethernet controller correctly after installing Windows 7

SYMPTOM:

IdeaPad Y450 could not recognize the Ethernet controller correctly after installing Windows 7. Error messages may appear when you tried to install the driver for it.

 

AFFECTED CONFIGURATIONS:

The above symptom may occur on the following systems:

All Idea Laptops preloaded with Broadcom Ethernet controller

 

On the following operating system:

Microsoft Windows 7

 

VALID REGIONS/COUNTRIES:

Worldwide

 

SOLUTION:

1. Turn on your PC.

2. Press and hold F8 key before Windows 7 splash screen shown in Fig.1 appears.

 

Fig.1

 

3. Enter “Advanced Boot Options” to select “Windows 7 Safe Mode”.

4. Open “Device Manager”, and then click the Ethernet Controller.

5. Click “Action” --> “Scan for hardware changes”, user may need to scan for several times. See Fig.2.

  

Fig.2

  

Then Windows will detect it as Broadcom Ethernet device with exclamation sign in “Device Manager”. You can follow the screen to update the driver for Windows 7, which you can download from http://support.lenovo.com/en_SG/downloads/detail.page?LegacyDocID=DRVR-MATRIX (Note: do remember to select your machines model information and operating system accordingly) that had been extracted to C:\Driver\Broadcom Ethernet XX folder.

Restart machine, now the Broadcom Ethernet controller can be used normally.

 

TRADEMARKS:

Lenovo, Lenovo 3000, IdeaCentre and IdeaPad are trademarks of the Lenovo Corporation in the United States, other countries, or both.

 

Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other countries, or both.

 

Other company, product, or service names may be trademarks or service marks of others.

 

Document ID:

 

Last modified:

2011-03-21


  • Alias ID: IN20110321-005
  • Document ID: HT034969
  • Last Updated :23/06/2014
  • (c) 2014 Lenovo