Hi all I'm trying to use the above option in Windows 8. However, I'm getting a message that says 'Some files are missing. Your Windows installation or recovery media will provide these'. I've inserted my Windows 8 Pro installation DVD (the one I created when I first bought and downloaded Windows 8 last year) but it won't accept this. Can someone please tell me how to get this option to work? Or am I going to have to reinstall in the old way, booting from the DVD? Many thanks. #29.