HP ZBook 14 Mobile Workstation, HP EliteBook 740 G1, HP EliteBook 840 G1, HP EliteBook 750 G1, HP EliteBook 850 G1 Notebook PC Maintenance and Service Guide

Press f11 while the computer boots.
– or –
Press and hold f11 as you press the power button.
Select System Recovery and follow the on-screen instructions.
146 Chapter 12 Backup and Recovery in SUSE Linux