I note that many simply refer to it as “that bar at the bottom” – usually a blank stare ensues after asking “which part” they mean. 
Step 1 - Get some wisdom:
At the following link there is a table showing all hooks with a brief description of each. It’s enough to gain a better idea of what each one does; choose them wisely as needed:
Step 2 - Make a decision:
Otherwise, open /etc/mkinitcpio.conf with your favourite editor, and add/remove hooks as you see fit, then save the file.
After that: sudo mkinitcpio -P and Reboot
Regards.