Hello Dave
I have started up the Reatogo disk again.
I can double-click on My Computer and see Shared Douments. The Shared Music/Video/Pictures folders inside there are all empty.
Drives C has become, in Raetogo, a 'Removable Disk and if I click on it it asks me to install a disk into drive C.
There is a drive, drive B (I never had a drive B) called RAMDisk and if I double click on that I can see three folders: bin, which is empty, Documents and Settings, which contains two folders - All Users and Default User. These contain other folders but there is nothing in them. For example, if I click on the folder called Desktop or Accessories, they are empty. The other folder, Logs, contains two log files which don't seem relevant. For example, the setupapi.log refer to the platform as Windows NT.
None of these files or folders seem relevant. I am afraid I just have to resign myself to the fact that the CD, and tools on it, cannot 'see' my hard drive or communicate with it - presumably because it is defunct.
Thanks again for your encouragement and assistance.