Please follow these steps to change the direction of the extended monitors:
- First, Right-click a blank area on the desktop.
- Then, Search for "Display settings" in the search box (Find a setting search box).
- Click on Display Settings.
- In the Monitor window that opens you should see your two monitors. Find out which is which by clicking Identify Monitors.
- Click and drag the right-hand monitor to the left or vice versa. (Drag and drop to the left or right).
That should change the positions of the two monitors so that the mouse motions should be the way you want them.