Completely restart your computer.
As soon as the manufacturer's logo appears (Dell, HP, Lenovo, ASUS, Acer, etc.), repeatedly press the Esc key until a menu appears.
If nothing happens, restart and try repeatedly pressing the Tab key.
If nothing happens, restart and try pressing and holding the Left Shift key until a menu appears.
One of these methods should display the GRUB boot menu.
Choose an older kernel
- Advanced options for Zorin
- Press
Enter - Select the previous kernel version by tapping the down arrow key to navigate the list.
Do not select Recovery Mode. - Press
Enterto boot.
You can use the link supplied by @wesoliv429 above to lock in the stable kernel and avoid needing to follow these steps at each boot.