If it’s already installed, remove the screw located across from the M.2 slot and slide the SSD into the M.2 slot at an angle.
If it’s already installed, remove the screw located across from the M.2 slot and slide the SSD into the M.2 slot at an angle. Make sure the notch lines up with the slot, similar to RAM installation. If the notch doesn’t line up, your drive may not be compatible with that slot (again, check your manual for details).