Unexpected PC shutdown/restart

[verymadhero]

So, I'm getting random restarts, shutdowns. At the beginning I thought that was something wrong with OS or hard drive because i was getting an error ( 0xc000000f ) so i used system repair to fix this issue but that didn't quite work. I was still getting random restarts, sometimes it didn't even get to the windows loading screen. I took the HDD, plugged it into MY PC and looked for bad sectors but everything seemed to be okay. I thought "Screw it. I'm going to reinstall OS" but I'm going to check the PSU first, voltages weren't quite right so i changed it to another 300W PSU, but after a week or so i got random restarts again. PC insides are kinda old but the case is 3 times older, so maybe the power button worn out, I unplugged the front panel and used screwdriver to short the pins, but that's not it. I installed updates and used it for about 2 hours it seemed to be okay, then I put it to the AIDA64's system stability test, temps were okay. After few days again...same story...I've booted it to BIOS and what do I see? Restart! Okay so now I'm 90% sure that's something wrong with hardware. I checked the condensators just in case, they are okay, pins in the socket were okay last time i checked, paste was recently changed, issue is not there. As I said I changed the PSU so that's also not the issue, I've checked this PSU to. Then as i removed MOBO i saw something weird, PCB behind CPU socket is bent, I checked it with a ruler XD. But do you have any other ideas what could it be? 

Specs:

CPU: G2030

RAM: 1 stick of 4GB DDR3

GPU: None

HDD: Don't really know but 500GB

 

 

[LunaP0n3]

Did some Googling. It would appear that your Windows Boot Config Data is damaged. I'd recommend creating a recovery disc, then using that to run the Command Prompt. From there you can re-write your BCD.

bootrec /rebuildbcd

Failing that, your SATA data cable that attached to your 500GB drive may be faulty or loose.

 

 

[verymadhero]

The thing is, as i said PC shuts down or restarts itself even when its in BIOS. Issue is not there