My PC screen brightness adjustment

I recently uninstalled the Windows 8 bases on my 255 HP and installed windows pro 8.1 build 9200. What bothers me, is that I can't turn down the brightness of my laptop and hurts the eyes and a laptop that is discharged in an hour to show for it. I have tried everything to try to adjust the brightness in Power Options in Control Panel to install several display drivers with no avail. I tried the upgrade of Microsoft's Visual display card and it didn't work. What the * is false? Please I need help. My head is pounding because of the wounds of the eye.

Thanks in advance...

Panashe salvation,

Welcome to the Microsoft community.

How you adjust the brightness and contrast varies and depends on your specific display. Laptop displays is not brightness or contrast buttons on the front. For the majority of laptops, there is not a control for adjusting the contrast. However, you can set the brightness of many laptops by pressing the Fn key and pressing a function key to decrease brightness or increase the brightness.

Check that you have installed all the latest Windows including optional and important. Install the driver and the following utilities.  You will be able to adjust the brightness using the function keys.

Also be sure to only install the driver from the computer manufacturer's website was last updated.

Let us know the status.

Kind regards

Guru Kiran

Tags: Windows

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