I greatly appreciate you taking the time to share this workaround so clearly. Windows 10 Repair Tool How did this happen? If you see a lot of errors or bad sectors, it's time to go shopping. http://www.howtogeek.com/222532/how-to-repair-corrupted-windows-system-files-with-the-sfc-and-dism-commands/ Rather than the Linux method I hooked the hard drive up to another XP PC and copied the required files across.
Once again many thanks!