Display settings: rotation lock
The T7 tablet / Yuma 7 tablet computer is equipped with orientation sensors that can detect if your device is in portrait or landscape orientation. The operating system can automatically adjust the display to match your device orientation, or you can lock the orientation.
To adjust the automatic display orientation feature, swipe in from the right edge of the screen or tap Action center on the taskbar to open the Action center, then select rotation lock
to turn rotation lock on or off.