Can't Adjust Brightness

[Mohammed53]

Hello, 

I can't adjust my screen brightness on my hp envy recline 27 k200no, windows 10.

Please help.

[asmita6658]

@Mohammed53

Greetings!
 
Welcome to the HP Support Community. This is a great place to get support, find answers and tips to your technical queries. I have reviewed your post and I understand, you are unable to adjust the brightness of the computer.

Appreciate you trying the steps. Don’t worry, I’m here to help! To better assist you -

1) Were there any hardware or software changes made?  

2) Have you tried any troubleshooting steps on your own before posting here? 

While you respond to that, let's try these steps to adjust the brightness -

1) Right click on the Start or Windows icon and open Control Panel. 
2) Click on Hardware and Sound.
3) Click on Power Options. 
4) Look for Screen Brightness located at the very bottom of the screen. 
5) Move the slider to adjust the brightness. 

If the issue still persists, try these steps -

Step 1 Hard Reset -

1) Shutdown the computer. 
2) Unplug all the Adapter and peripherals connected. 
3) Press and hold down the power button for 15 to 20 seconds. 
4) Plug-in the Adapter. 
5) Try to turn on the computer. 

Step 2 Re-install the display adapter -

1) In the search box on the taskbar, type Device Manager, and then select Device Manager from the list of results.
2) In Device Manager, expand Display Adapter. 
3) Right-click on the Display Adapter, and then select Uninstall device > Delete the driver software for this device check box > Uninstall.
4) Restart the computer. 

Also, try updating the computer - 

Step 3 Windows Updates troubleshooter -
Click on this link to run the Windows Updates troubleshooter.

Step 4 Windows Updates - 
1) In the search box, type and open Windows Updates. 
2) Check for updates. 
3) If the updates are available, click on install and restart the computer. 

Step 5 HP Support Assistant Updates - 
1) In the search box, type and open HP Support Assistant. 
2) Check for updates. 
3) If the updates are available, click on install and restart the computer. 

Step 6 System Restore -
1) Shutdown the computer. 
2) Turn the computer back on again and repeatedly tap on the ESC until a Startup menu appears. 
3) Press F11 once for System Recovery. 
4) Choose the Keyboard Layout. 
5) Click on Troubleshoot. 
6) Go to Recovery Manager and click on System Restore. 
7) Choose a Restore point or a Restore date when the computer was working fine. 
8) Click on OK to initialize the System Restore.

Hope this helps!

Let me know how that goes.

To thank us for our efforts to help you, click here to access your public post and Select - "Accept as solution" and click on the  "Thumbs up". 

Have a great day ahead 🙂