Hi, i had a pretty old pc and i installed windows vista (cuz that's what it shipped with) and before windows vista i had windows 7 running on it. I was watching a movie with my mom then it randomly shat down. I tried to power it back on and it didn't work. I unplugged it from power cuz i got scared lmao. Some weeks later when my new laptop wasn't working, i powered it on again, this time making EXTREMELY WEIRD AND SCARY noises. I imediatelly shat it down and unplugged it. Later that day i powered it on again (with my hand on the cable ready to unplug it) and it booted to vista. I booted to bios and i saw that the temperatures were very normal, at like 20*. I booted it to windows and i tried to make a windows 7 bootable usb until it randomly shat down. I unplugged it and then it started smelling like burning. I had -1 ideas of what to do. i just panicked. Nowadays opening up my pc it doesnt smell like anything was burning(i am way too much of a pussy to power it on) but the power supply.. it smelt like burning. Did windows vista cause my psu to catch on fire? It worked 2+ years on 7 alright.