How to rotate the screen on Windows 10
To return to the normal orientation, use the "Ctrl + Alt + Up arrow" keyboard shortcut. How to rotate screen using graphics ...
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How to rotate the screen on a Samsung Galaxy S10 and troubleshoot your screen if it's not rotating
1. Rotate the screen to see if the image rotates. If it does not, contact Samsung for support. 2. To exit this test screen, double-tap the back button several times to return to the Phone app.