OH dear
I wiggled it, I rubbed it, I even blew in to it and still I couldn't get it to work. So like an idiot, I decided to install Kali on the whole drive, well its just a second hand mini laptop after all.

Any way I got over half way and the software demanded I plug in the original disc which was already running in the external DVD drive (the mini laptop doesn't have a DVD drive).

After several tries I gave up and low and behold I can't run windows any more. It will still boot from my usb drive. So not all is lost.

Any suggestions other than "****** idiot" would be most helpful.

Thanks a lot.