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I formatted my Vaio VPCEA37FL laptop and later I installed a clean version of Windows 7.

The problem is, adjust screen brightness hotkeys do not work anymore. I have installed every driver from Sony support website that I think it could be related, but no luck. I contacted Sony support, but they told me it is necessary to modify the registry and they want to charge me 80 dollars (it includes a computer scan).

So, does anybody know what do I need to do to fix it? Do I really need to modify the registry?

Thanks.

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If you know where the registry is located, then that would be a good course of action. Then again, you could always backup all of your data and restore the factory settings... which I would imagine is probably not feasible. –  Rob Sep 16 '12 at 13:54
    
Also I would keep an eye on this question. –  Rob Sep 16 '12 at 13:56

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