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In this video i tell you that
Rotating the screen on a PC or laptop can be useful for a variety of reasons, such as accommodating a different display orientation or simply for a change of perspective. The process for rotating the screen can vary slightly depending on the operating system, but the following steps should work for most Windows and Mac systems:
Right-click on the desktop and select "Display settings" (Windows) or "System Preferences" "Displays" (Mac).
Look for an option labeled "Orientation" or "Rotation." On Windows, this may be under "Advanced display settings" or "Display adapter properties."
Select the desired orientation or rotation. Options may include Landscape, Portrait, Landscape (flipped), or Portrait (flipped).
Click "Apply" or "OK" to save the changes.
Your screen should now be rotated to the desired orientation. If it does not automatically adjust, you may need to manually adjust the physical position of your device.
Note that some graphics cards may not support screen rotation, so this option may not be available on all systems. Additionally, some software applications may not display correctly in a rotated orientation, so you may need to adjust your settings back to the default if you encounter issues.