HP EliteOne 800 G2 23 inch All-in-One HP EliteOne 705 G2 23-inch Touch All-in-One HP ProOne 600 G2 21 inch All-in-One - Maintenance & Service Guide

7. Lift the SSD to a 45-degree angle, and then pull it away to remove it from the socket (2).
To install the PCI-Express M.2 SSD, reverse the removal procedures.
PCI-Express M.2 Solid-State Drive 55