Scratch that, I found that I did it right at the Windows\system32 location. However, I asked because when I started the DISM tool to restore health on my WIn8. It was taking long so I took a walk and came back to a black monitor screen not receiving any data. I couldnt get anything to show. It stayed like this for hours, so I restarted it by pushing the power button, and luckily the OS came back.
I was unsure if I did the DISM check right.