To change the scroll direction for your Mac's trackpad, click the Apple menu → click System Preferences → click Scroll & Zoom → toggle the Natural scroll direction on or off.
Trackpad Scrolling
Click the Apple menu.
Click System Preferences.
If a submenu opens instead of System Preferences, click the Show All button at the top of the window.
Click Trackpad.
- You can change a number of things in your trackpad settings, like tracking speed and double-click speed.
Click the Scroll & Zoom tab.
Click the Scroll direction: Natural checkbox.
When this is enabled, swiping down on the trackpad with two fingers will scroll up and vice-versa. When this is disabled, swiping down will scroll down.
Mouse Wheel Scrolling
Click the Apple menu.
Click System Preferences.
If you see a submenu instead of the main System Preferences menu, click the Show All button at the top of the window.
Click Mouse.
Click the Scroll direction: Natural checkbox.
When this is enabled, moving the wheel down will scroll up and vice-versa. If you disable this option, moving the wheel down will scroll down.