Display issues

[pm770]

I can't reduce the brightness of my screen The brightness adjustor is not even present in the display settings.

I can't project my screen..I get this error message which says I should update my display driver, which I did.

Video fails to play well. It begins playing and within a short time you only hear the sound of the video and just pictures on the screen..

My PC was working perfectly well recently on Windows 7 home premium until I upgraded it to Windows 10, and now I'm facing issues..

Need assistance

[Echo_Lake]

@pm770

Thank you for posting on HP Support Community.

Don't worry as I'll be glad to help, I have a few troubleshooting steps we could try to fix the issue:  

Firstly, perform Windows Update and HP Support Assistant: (do not skip any troubleshooting steps if you feel steps are repeating) 

To check for updates now, select the Start button, and then go to Settings  > Update & security  > Windows Update, and select Check for updates.

Install updates from HP Support Assistant: Go to Download HP Support Assistant to install the tool.

1. To open HP Support Assistant, double-click the HP Support Assistant icon .
2. Click My devices in the top menu, and then click Updates in the My PC or My notebook pane.
3. Click Check for updates and messages to scan for new updates.
4. Review the list of updates. Updates with a yellow information icon are recommended. Updates with a blue information icon are optional.
5. Click the update name for a description, version number, and file size.
6. Select the box next to any updates you want to install, and then click Download and install.

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.