controller drivers Ethernet, USB and SM Bus won't install?

Device Manager displays the error icon yellow for Ethernet, USB, and SM Bus controllers.  'Properties' - 'pilot' show-"no driver not loaded"...  At ran Windows Update & Vaio Update... with no success.  Did a google search, search for Sony... can not find the drivers to download...  Uninstalled all three - and ran "Check in the changes of material" - still no luck... Any recommendations? I'm LOST!

Hello

What is the model # computer? Check the following link to locate the model #:

http://eSupport.Sony.com/us/p/support-info.pl?info_id=264

You have performed a clean installation of Windows?

What operating system currently installed?

If Windows 7 see the following clean install:

http://eSupport.Sony.com/us/Perl/support-info.pl?template_id=1&info_id=507

Tags: Sony Computers

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