Hi,
Thank you for posting your concern on Microsoft Answer Community.
- What is the make and model number of the PC?
- Do you have additional graphics card installed on your computer?
We would suggest you to follow the method mentioned below and let us know if that helps.
- Press Windows and R key together on your Keyboard. Type control and hit enter.
- Search for Power Options.
- Click on “Change advance power settings”.
- Under Advanced settings tab, Expand the Display option
- Expand **Enable adaptive brightness,**then **** turn OFF the settings.
- Restart the PC.
Hope it helps.
Aditya Roy
Microsoft Community – Moderator