switches for screen brightness on the keyboard aren't working

[deynamita1996]

I have HP laptop. Recently I have installed Windows7. Everything is working fine except that I can't adjust brightness now. There is neither an for it in personalization nor the switches for adjusting brightness on the keyboard are working. I had windows10 before and the switches were working fine then. but now those two switches aren't working.

 

[webworkings]

Try this...

1. Go into "Control Panel" and then "Power Options".

2. Click the "Change plan settings" link next to which ever plan you are currently using and then click "Change advance power settings".

3. In this new window click "Display" to open up the listings under it.

4. Now locate and click each of the following..."Display brightness", "Dimmed display brightness" and "Enable adaptive brightness".

5. Change each of these to the settings you wish, then click the "Apply" button and finally the "OK" button.

6. You should be good.

 

[SneakLerd]

Greetings
HP usually got this thing, that when you reinstall windows, it loses it's keyboardshortcuts.
This is due to an driver getting uninstalled.
Are you sure you have gone on the HP-site and installed all the drivers?

Regards