My laptop's screen is broken,so i used hdmi to connect it to my tv.Couple days ago i messed with bios ,( turned off legacy mode ) suddenly there is no signal in output.. So i disassembled laptop so that i can reset bios by clearing cmos..After doing that i found that hdd is not having any os ( corrupted )..So If i install new os in hdd using another pc and connecting it back to the laptop..Will it boot ? Laptop-Hp pavilion 15 series. I connected my desktop hdd to it .. nothing on screen .. I can see fan is running ..The laptop is having uefi thing so is it possible to boot it with a regular bootable flash drive ?