|Well guys, here's the scoop. I created myself a boot disk (with another computer), called up fdisk, and sure enough, no partition had been created on this HD. So I created the partition and in addition had to reformat the HD which itself took maybe 10 or 15 minutes. Several times during the formatting it was saying "trying to recover allocation unit", and from my perspective it seemed to be struggling to format this drive.|
But after this format the HD did indeed show up in Windows!!
I just would like to say thanks for all individuals who made a contribution to this post, and in particular to OtheHill who had the right answer.
Now my computer is happy and he can get a good night's sleep.
I thus concluded that it is much more custom and example that persuade us than any certain knowledge ...