I am trying to make a old PC of mine (from 2008) to run. Its old HDD stopped working and today I bought a new one. Everything was going well. I installed Win 7 in my pendrive via Rufus USB since I don't have a install disk. I selected the USB as the first boot device and It starts the "Windows is loading files..." and midway through it the computer shuts down. It has 3 GB RAM DDR2 1033mhz, a Intel Core Duo 2 E2140, brand new Seagate 500GB 7200RPM HDD and the motherboard is a MSI P4M890M3-V. Overheating is not a problem. https://imgur.com/gallery/NFAeuoG (video)