Can't find the thread I was looking for, but this one https://www.techspot.com/community/topics/battery-life-of-an-hp-laptop.275769/#post-2081222 is good enough, I hope. Harddrive failure, is it possible to put a different OS on a flashdrive , change boot order & use it that way. I think this laptop started out as a W8.1, ended a W10