Acer AR360 F1 - Manual (Page 128)

4 System BIOS 112
Discard Changes: Select this option and press <Enter> to discard all the
changes and return to the BIOS Setup Utility.
Load Optimal Defaults: To set this feature, select Load Optimal
Defaults from the Exit menu and press <Enter>. Then, select OK to
allow the BIOS to automatically load optimal defaults to the BIOS
settings. The Optimal settings are designed for maximum system
performance, but may not work best for all computer applications.