A while ago, friends of mine got a Samsung NP370r5e-a02nl laptop for a good price. The downside was, that it had already been used and was full of useless programs and had become quite slow. So, as being the 'computer guy', I decided it could use a clean install of windows 8 (it came with 7 installed). So after installing I discovered that the laptop wouldn't shut down. It only got to a point where the screen is black and nothing seems to respond, but the fans and power led stay on. So at the next boot I tried to reboot to see what happens. Turns out that it in fact shuts down, but doesn't power on again. When going to sleep (by closing the lid or waiting long enough), it shows the same symptoms as when shutting down.
I have to say, I think I've tried every possible solution I could find. I reinstalled Windows several times, including Windows 10, and a downgrade back to 7, but the problem persists. Every time I've installed a version of Windows, I updated all the possible drivers I could find. None were a solution to the problem. I even swapped the harddrive for an SSD because, next to it being quite slow, I thought it was malfunctioning. This also had no effect on the problem. Also checked the BIOS for any faulty settings but couldn't find any. I also installed Windows under an EFI as well as standard BIOS to see if it would matter, but it doesn't.
Now at this time, I'm running out of options. Is there anyone here that could help me find and fix the problem?
Thanks in advance,