Flip Laptop The Visual Images On My Mother's Laptop Screen Flipped Sideways. How Do I Flip Them Back Around?

The visual images on my mother's laptop screen flipped sideways. How do I flip them back around? - flip laptop

Team, my mother is a team, and therefore do not have administrator privileges and can not do a system restore. My dog would like pressing a button on the screen of their combination of buttons, and the actual visual images, all turned to one side so that your computer should have on your side to get the correct screen. I have no idea what to do or what causes - I do not even know that you can rotate the screen on the side. Who knows how that vice versa?