It has come up with this message saying "windows/system32/config/system is corrupt" and that it has to be repaired.
But, My DVD drive doesnt work

I have tried copying the contents of the CD onto a USB and then repairing off that but it didnt work and just said "Operating system not found"
I heard there is a way of connecting your laptop HD to your main computer using a EDI cable or something and then transferring the files off the CD needed.....But what files do i need on the HDD to make it work again?
Hope somebody can help me!