You can push f11 at startup to do a factory restore, or burn recovery disks using HPs recovery program. The OEM disk should also work. I don't know which gpu it will default to...
But it doesn't matter. GPUs don't use much power at idle anyway. They is no "extreme heat or massive power" issue.the integrated gpu just uses less and its already there so they use it to extend battery life a little
Well, I'm more concerned about the heat, about the GPU, because when I use it at max, the laptop gets really hot.
As for the factory restore, well I had a problem with the partitions, and I don't happen to have that restore feature