Re: Yoga 2 Pro - Auto brightness feature and how to disable in Windows 8.1

I got my YOGA 2 PRO, and after 15 days (I did not copied my files to it yet!) I already have the screen brightness diming without any control. It seems like it goes brigther and darker alone while I am reading a page at firefox or explorer. I saw the recommendation on this forum
BUT: CHANGE PC SETTINGS does NOT open! When click it brings the blue screen with the settings symbol and nothing happ
ens! No menus, no options to change anything. Does anyboby could help me?
I also tryed CHECK WINDOWS UPDATE through CONTROL PANEL, however it stays for around 15 minutes searching, searching and no response (Internet connection is for sure working properly).
My brand new YOGA 2 PRO is not working properly after 15 days! (screen diming, CHNAGE PC SETTINGS does not work, NO WINDOWS UPDATE RESPONSE).
Please help!
YOGA 2 PRO Inteli7; 4GB RAM; 256GB HD; 13 inches

Guilherme1010,
Welcome to the forum.  I see that you left this comment on this KB article on autobrightness and so I moved it out here so that others in the community would be more likely to see it and chime in with suggestions.
If you have not installed your own applications or data yet, and you are having issues with the system not responding to check for updates even if there is internet connection, and not opening settings, then you can try to debug this, or you might consider doing a system reset to restore to factory condition.
Sometimes, the preloaded image gets corrupted and can just be reset, and then will work fine.
Here are some instructions on how to reset.  http://windows.microsoft.com/en-us/windows-8/restore-refresh-reset-pc
I realize this may be a bold step, and it will wipe out all data and settings on the system so make sure you are ready to do that. 
Best regards,
Mark
ThinkPads: S30, T43, X60t, X1, W700ds, IdeaPad Y710, IdeaCentre: A300, IdeaPad K1
Mark Hopkins
Program Manager, Lenovo Social Media (Services)
twitter @lenovoforums
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