No sound after installing Windows 7 SP1 on Dell 15 (1564)

Hello

I had to make a clone of my HD that came with the machine almost died - the system did not start as it was too busy to work with bad sectors. The new clone has worked well, except no sound. I reinstalled all the drivers, including the chipset Intel HD Audio and Realtek Audio card drivers, but no go. Even video drivers AMD drivers LAN, card reader drivers, I reinstalled everything but nothing worked. I finally deleted the Windows 7 SP1 installation, and all of a sudden, everything works fine! I reinstalled the version SP1 with a new copy of the Microsoft site and again the sound disappears. When I go to system information, audio devices are no problem. Windows and Dell own troubleshooting finds no problem. The Realtek speakers are set by default (tried deactivating and reactivating, but did not work). The only point where reviews of windows without the audio is generated when I go into the settings of the speakers, select the speakers (only option is stereo) and click Test, the system claims that the sound could not be played. Am I doomed to Windows 7 which can never be updated for SP1?

Note also that I can't go back to the factory because settings that the cloning process deleted the hidden partition. Also, I never had the drives installation or repair for Windows 7, so that option is out as well.

What, in the Windows SP1 could cause the noise problem? I realize that since the Audio worked fine before cloning in SP1, the question must be with the architecture of Windows, but why the sound will return when I uninstall SP1?

Anyone have any new ideas?

Such problems are common with factory settings which have the pre-installed drivers, as well as pre-installed software.

Windows 7 Service Pack 1 contains a number of drivers which adequate conflict with the pre-installed drivers. So you reduced the (likely) bad audio and video performance may be bad.

You can try to uninstall audio and video drivers to uninstall Windows 7 Service Pack 1, then go to uninstall or change a program and remove any audio or video software. Also to uninstall the drivers from Device Manager and then install Windows 7 Service Pack 1, and then the drivers.

It would probably be better if you just clean installed with media that contains the Service Pack 1 and then install system drivers in the correct order.

Follow the Windows reinstallation Guide / A clean installation of Windows 7:

http://philipyip.WordPress.com/Dell-community-forums/

It will tell you how to download a Windows 7 with Service Pack 1 installation .iso, create a bootable USB, backup product activation and clean install of Windows 7. This should give optimal performance.

Tags: Dell Laptop

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