I have a laptop that had blue screens a few times. I reinstalled Windows and they continued, OS crashed and I couldn't reinstall Windows. I installed Ubuntu just fine and saw that the HDD was faulty, so I swapped HDDs to a working one but still could not install Windows.
I used Ubuntu for a few months but I wanted Windows so after more testing I found that the reason I probably couldn't install Windows was faulty RAM. I also noticed that the plug from the power supply was extremely hot in the socket. Sometimes I have to angle it so I can charge the battery/laptop. I have another compatible power supply that does the same thing when I plug it in so I know it's not the power supply.
My question is, could it have been the power supply that caused the HDD and RAM to go faulty? And if so, what are the chances that the CPU, GPU or motherboard are damaged in some way also? I run Ubuntu on it just fine. I turn the laptop off, charge the battery, unplug it then run it off battery (can this damage the components or would it just be bad for the battery?). Ubuntu runs perfectly fine, I still can't install Windows because of the RAM (I suspect).
I want to buy new RAM for it and see if I can install Windows, then if I can I would take it to get the jack replaced, but if people think there might be underlying damage to the laptop other than just the RAM that makes it not worth putting the money into I would appreciate the input.