Pages 74 & 75 of your User's Manual (English), paragraph labeled "Performing A Recovery Option".
Launch "Settings" select "Update and Security".
Under "Update and Security" option, select "Recovery" then select the recovery option you wish to perform.
I believe the option you want is "Reset This PC".
Good Luck
This post should be moved to the GX/GM/GU Series Gaming Notebooks Forum.
G752VSK, G75VW-3D, G51J, G1S
Homebuilt Windows Server